QUESTION stringlengths 3 2.5k | ANSWER stringlengths 4 302 | CHOICES listlengths 1 4 | RATIONALE stringlengths 0 14.5k ⌀ | dataset stringclasses 8
values | id stringlengths 12 26 |
|---|---|---|---|---|---|
Which of the following is used for abdominal pregnancy | A. Studiford criteria | [
"Studiford criteria",
"Speigelberg criteria",
"Rubins criteria",
"Rotterdam criteria"
] | Studdiford criteria : To diagnose the abdominal pregnancy Both the tubes and ovaries are normal without any recent injuries Absence of uteroperitoneal fistula Presence of pregnancy related exclusively to the peritoneal surface and young enough to eliminate the possibility of secondary implantation following the primary... | medmcqa | medmcqa_0007027 |
If after 300 grams of water were added to the 24%-solution of alcohol, the strength of the solution decreased by one-third, how much of the 24%-solution was used? | A. 600 grams | [
"600 grams",
"220 grams",
"250 grams",
"350 grams"
] | I too think 600 grams should be the answer.
My reasoning is
The h20 content in 300 gms of water is 1
h20 content in 24% solution is 0.76
Resulting new solution's concentration decreases by one third means. Now it becomes 16% solution which means h20 content is 0.84
Let amount of solution be X
Then the equation can be s... | aqua_rat | aqua_rat_0005513 |
There are 6 chess amateurs playing in Villa's chess club tournament. If each chess amateur plays with exactly 4 other amateurs, what is the total number of chess games possible to be played in the tournament? | B. 12 | [
"10",
"12",
"40",
"60"
] | Method 2:
Each person is one participant of 4 games. So there are in all 4*6 = 24 instances of one participant games. But each game has 2 participants so total number of games = 24/2 = 12
E | aqua_rat | aqua_rat_0008205 |
P : 0 ratio for FAD is - | C. 1.5 | [
"3",
"2.5",
"1.5",
"4"
] | Ans. is 'c' i.e.,1.5The P : 0 ratio is a measure of the number of high energy phosphates (i.e., number of ATP molecules) synthesized per atom of oxygen consumed or per molecule of water is produced.The P : 0 ratio for oxidation of metabolites that yield NADH is 2.5 and the ratio for those that yield FADH2 is 1.5. | medmcqa | medmcqa_0000353 |
Where is most of the mass of the atom located?
A. in the protons
B. in the nucleus
C. in the neutrons
D. in the electrons
Answer: | B. in the nucleus
| [
""
] | To determine where most of the mass of the atom is located, let's analyze the options step by step:
1. **Understanding atomic structure**: An atom consists of a nucleus and electron cloud. The nucleus contains protons and neutrons, while electrons orbit around the nucleus.
2. **Mass of subatomic particles**:
- **Pro... | mmlu | mmlu_0000554 |
Tensile strength of wound becomes normal after | B. Never | [
"6 weeks",
"Never",
"4 months",
"6 months"
] | Scar will continue to mature for one to two years. The maturation of collagen(TYPE III to TYPE I) leads to increase in tensile strength in the wound which is maximal at 12th week post injury and represents approximately 80% of uninjured skin strength. Bailey and Love 27th edition Pg: 25 | medmcqa | medmcqa_0007255 |
Alice deposited Rs 2 million in bank at 4 % simple interest per year. After 10 year how many Rs she will get from bank? | D. 80000 | [
"75000",
"90000",
"10000",
"80000"
] | i = (200000*10*4)/100
i = 80000
Answer: D | aqua_rat | aqua_rat_0001433 |
In a 4000 meter race around a circular stadium having a circumference of 1000 meters, the fastest runner and the slowest runner reach the same point at the end of the 5th minute, for the first time after the start of the race. All the runners have the same starting point and each runner maintains a uniform speed throug... | C. 10 min | [
"20 min",
"15 min",
"10 min",
"5 min"
] | Explanation :
The ratios of the speed of the fastest and the slowest is 2 : 1. Hence, they should meet only at one point at the circumference i.e the starting point (As the difference in the ratios in reduced form is 1).
For the two of them to meet for the first time, the faster shuld have completed one complete round ... | aqua_rat | aqua_rat_0002088 |
Virulence of mycorbacteria is due to: | B. Cell envelope | [
"Mycotoxin production",
"Cell envelope",
"Resistance to inactivation by heat",
"Proteolytic bacteria"
] | Friends there are multiple factors are listed as virulence factors of the MTC, few of them are:
Lipids and Fatty Acid Metabolism and Synthesis of complex lipids, lipoproteins
Mycolic acid synthesis
Cell envelope and cell wall proteins
Some secretion system
Proteins Inhibiting Antimicrobial Effectors of the Macrophage ... | medmcqa | medmcqa_0007326 |
Sheila works 8 hours per day on Monday, Wednesday and Friday, and 6 hours per day on Tuesday and Thursday. She does not work on Saturday and Sunday. She earns $360 per week. How much does she earn in dollars per hour? | B. 10 | [
"11",
"10",
"9",
"8"
] | Let Sheila earn x dollars per hour
So, on Monday, Wednesday and Friday , she earns 8x each
And, on Tuesday and Thursday, she earns 6x each
In total , over the week she should earn, 3(8x) + 2(6x) = 36x
She earns $360 per week
36x =360
x =10
Correct Option : B | aqua_rat | aqua_rat_0003817 |
When a solute dissolves into a solvent what is that called? | D. enthalpy | [
"mixing",
"solubility",
"viscosity",
"enthalpy"
] | Enthalpy changes also occur when a solute undergoes the physical process of dissolving into a solvent. Hot packs and cold packs (see Figure below ) use this property. Many hot packs use calcium chloride, which releases heat when it dissolves according to the equation below. | sciq | sciq_0003046 |
What biome is located between the temperate and tropical biomes? | D. subtropical | [
"Tropical",
"Desert",
"mountainous",
"subtropical"
] | Latitude means how far a biome is from the equator. Moving from the poles to the equator, you will find (in order) Arctic, boreal, temperate, subtropical, and tropical biomes. | sciq | sciq_0006579 |
In fracture of femur popliteal artery is damaged by | C. Distal 1/3rd fragment | [
"Upper 1/3rd fragment",
"Middle 1/3rd fragment",
"Distal 1/3rd fragment",
"Popliteal artery is never involved"
] | null | medmcqa | medmcqa_0001840 |
A, B and C have Rs.700 between them, A and C together have Rs.300 and B and C Rs.600. How much does C have? | A. 200 | [
"200",
"250",
"300",
"350"
] | A+B+C = 700
A+C = 300
B+C =600
--------------
A+B+2C = 900
A+B+C = 700
----------------
C = 200
ANSWER:A | aqua_rat | aqua_rat_0005590 |
The diagonals of a rhombus are 12 cm and 20 cm. Find its area? | C. 120 | [
"176",
"186",
"120",
"179"
] | 1/2 * 12 * 20
= 120
Answer:C | aqua_rat | aqua_rat_0000039 |
What is the name of pluto's moon? | B. charon | [
"Europa",
"charon",
"Phobos",
"Titania"
] | Pluto and its moon, Charon, are actually two objects. | sciq | sciq_0008473 |
When the helium is gone, the stars become what? | B. white dwarfs | [
"comets",
"white dwarfs",
"yellow dwarfs",
"red giants"
] | When the helium is gone, the stars become white dwarfs. | sciq | sciq_0009904 |
A student crumples up a sheet of paper. Which property of the paper has changed? | D. shape | [
"color",
"mass",
"state",
"shape"
] | arc_easy | arc_easy_0000649 | |
There are 2 bars of gold-silver alloy; one piece has 2 parts of gold to 3 parts of silver and another has 3 parts of gold to 7 parts of silver. If both bars are melted into 8 kg bar with the final gold to silver ratio of 5:11. What was the weight of the first bar? | A. 1 kg | [
"1 kg",
"3 kg",
"5 kg",
"6 kg"
] | irst bar is x kg, then second bar is (8-x)kg
First bar:
Amt of gold = 2x/5kg
Amt of silver = 3x/5 kg
Second bar:
Amt of gold = 3(8-x)/10 kg
Amt of silver = 7(8-x)/10 kg
Total amt of gold = 2x/5 + 3(8-x)/10 = (4x+24-3x)/10 = (x+24)/10 kg
Total amt of silver = 3x/5 + 7(8-x)/10 = (6x+56-7x)/10 = (56-x)/10 kg
Ratio of gold... | aqua_rat | aqua_rat_0009901 |
What is the sum of all possible 3-digit numbers that can be constructed using the digits 1, 2, and 4 if each digit can be used only once in each number? | C. 1554 | [
"1210",
"1221",
"1554",
"1443"
] | There are 6 possible arrangements of the three numbers.
Then each number will be in the hundreds, tens, and ones place two times each.
The sum is 2(111) + 2(222) + 2(444) = 1554
The answer is E. | aqua_rat | aqua_rat_0007854 |
What is necessary for organisms to survive in the deepest parts of the ocean? | B. adaptations | [
"competition",
"adaptations",
"reflexes",
"mutation"
] | There are few organisms that live in the deepest ocean. The ones that do have amazing adaptations to the exceptionally harsh conditions. | sciq | sciq_0006785 |
How many two element subsets of {5,6,7,8,9} are there that do not contain the elements 6,7 and 9? | A. 1 | [
"1",
"2",
"3",
"4"
] | Required subsets are = {5,8}= 1
Answer: A | aqua_rat | aqua_rat_0001355 |
An infant with severe dehydration secondary to diarrhea suddenly presents with proteins and blood in urine. The most probable diagnosis is? | A. Renal vein thrombosis | [
"Renal vein thrombosis",
"Pyelonephritis",
"Acute glomerulonephritis",
"Lower nephrosis"
] | Ans. is 'a' i.e., Renal vein thrombosis | medmcqa | medmcqa_0008781 |
The treatment of early stage of East African sleeping sickness is – | C. Suramin | [
"Pentamidine",
"Eflornithine",
"Suramin",
"Melarsopol"
] | null | medmcqa | medmcqa_0008477 |
A Man travelled a distance of 61 km in 9 hours. He travelled partly on foot at 4 km/hr and partly on bicycle at 9 km/hr. What is the distance travelled on foot? | C. 16 | [
"33",
"38",
"16",
"87"
] | Let the time in which he travelled on foot = x hr
Then the time in which he travelled on bicycle = (9 - x) hr
distance = speed x time
⇒4x+9(9−x)=61⇒4x+81−9x=61⇒5x=20⇒x=4⇒ distance travelled on foot = 4x=4×4=16 km
Answer : C | aqua_rat | aqua_rat_0006670 |
What runs through the penis and opens to the outside at the tip of the penis? | C. the urethra | [
"fallopian tube",
"prostate gland",
"the urethra",
"vas deferens"
] | sciq | sciq_0009560 | |
What code is the same in all living things and shows that all organisms are related by descent from a common ancestor? | D. genetic | [
"descendant",
"intrinsic",
"biochemical",
"genetic"
] | The genetic code is the same in all living things. This shows that all organisms are related by descent from a common ancestor. | sciq | sciq_0000357 |
A ranula is a | D. Cystic swelling in the floor of the mouth | [
"Type of epulis",
"Sublingual thyroid",
"Thyroglossal cyst",
"Cystic swelling in the floor of the mouth"
] | null | medmcqa | medmcqa_0000140 |
What is the water that falls from the sky called? | D. precipitation | [
"condensation",
"evaporation",
"moisture",
"precipitation"
] | Clouds are needed for precipitation. Precipitation is water that falls from the sky. This may fall as liquid water, mostly as rain . It may fall also as frozen water, such as snow. | sciq | sciq_0010057 |
Recommended minimum per capita space for every worker under The Factory Act 1948 is:- | C. 500 cu.ft. | [
"100 cu.ft.",
"300 cu.ft.",
"500 cu.ft.",
"1000 cu.ft."
] | Factory act 1948: Employment of <14 years child is not allowed 15-18 years Adolescents are allowed to work only between 6 am and 7 pm Work hour duration: Max. working hours (Adults) - 48hrs /week (not exceeding 9 hrs/day) Total no. of hours including oveime should not exceed - 60hrs /week Per capita space - 500 cu.ft 1... | medmcqa | medmcqa_0005827 |
A circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m2? | C. Rs.44 | [
"Rs.45",
"Rs.48",
"Rs.44",
"Rs.43"
] | π (152 - 132) = 176
176 * 1/4
= Rs.44
Answer:C | aqua_rat | aqua_rat_0008849 |
What are the tiny sacs in the lungs where gas exchange takes place? | B. alveoli | [
"bronchi",
"alveoli",
"cilia",
"ganglion"
] | Alveoli are tiny sacs in the lungs where gas exchange takes place. | sciq | sciq_0010102 |
How many 5 digit number can be formed out of digits 0,2,4,6,8 that is divisible by 8. | B. 30 | [
"26",
"30",
"38",
"98"
] | For a number to be divisible by 8, its last three digits must divisible by 8.
So, last three digits can be from the following group
(024), (048), (064), (208), (240), (248), (264), (280), (408), (480), (608), (624), (640), (648), (680), (824), (840), (864),
There are 18 such groups.
Consider these 12 groups in which ze... | aqua_rat | aqua_rat_0009921 |
What is the name for a substance that can be used to follow the pathway of that substance through some structure? | D. tracer | [
"gel",
"tracker",
"solution",
"tracer"
] | Learn some applications of radioactivity. Radioactive isotopes have a variety of applications. Generally, however, they are useful because either we can detect their radioactivity or we can use the energy they release. Radioactive isotopes are effective tracers because their radioactivity is easy to detect. A tracer is... | sciq | sciq_0007179 |
A short reflex is completely what and only involves the local integration of sensory input with motor output? | C. peripheral | [
"physiological",
"neuronal",
"peripheral",
"central"
] | Short and Long Reflexes Somatic reflexes involve sensory neurons that connect sensory receptors to the CNS and motor neurons that project back out to the skeletal muscles. Visceral reflexes that involve the thoracolumbar or craniosacral systems share similar connections. However, there are reflexes that do not need to ... | sciq | sciq_0006170 |
Most common hea lesion in down syndrome | A. ASD with ostium primum | [
"ASD with ostium primum",
"ASD with ostium secundum",
"VSD",
"Coaection of aoa"
] | Ans. is 'a' i.e., ASD with ostium primum About 40% children with down syndrome have congenital hea disease. Endocardial cushion defect (ASD with ostium primum) account for 40-60% of cases. | medmcqa | medmcqa_0004587 |
The average score of a cricketer in 6 matches is 27 and in other 4 matches is 32. Then find the average score in all the 10 matches? | D. 29 | [
"25",
"27",
"30",
"29"
] | Average in 10 matches = (6*27 + 4*32)/6+4 = 162+128/ 10 = 290/10 = 29
Answer is D | aqua_rat | aqua_rat_0004195 |
A decrease in which of the following would be expected to occur in response to a direct increase in renal aerial pressure? | C. Sodium excretion | [
"Glomerular filtration rate",
"Water excretion",
"Sodium excretion",
"Extracellular fluid volume"
] | An increase in renal aerial pressure results in pressure natriuresis and diuresis. The loss of sodium and water tends to decrease extracellular fluid volume | medmcqa | medmcqa_0005079 |
20 chess players take part in a tournament. Every player plays twice with each of his opponents. How many games are to be played? | A. 380 | [
"380",
"470",
"560",
"650"
] | 2*20C2 = 2*190 = 380
The answer is A. | aqua_rat | aqua_rat_0000780 |
Natural processes cause rapid and slow changes to Earth's surface. Which event causes changes to Earth's surface most rapidly?
A. an earthquake shaking the ground
B. sediment washing into a bay
C. a rainstorm weathering rock
D. water flowing in stream
Answer: | T.
| [
""
] | To determine which event causes changes to Earth's surface most rapidly, let's analyze each option:
A. **An earthquake shaking the ground**: Earthquakes are sudden and powerful events caused by the movement of tectonic plates. They can cause immediate changes to the landscape, such as faulting, landslides, and ground ... | mmlu | mmlu_0000991 |
Which statement best describes the nature of sound? | C. Sound travels as longitudinal waves. | [
"Sound travels fastest in air.",
"Sound travels faster than light.",
"Sound travels as longitudinal waves.",
"Sound travels as transverse waves."
] | arc_easy | arc_easy_0000871 | |
Blood group antigens belong to the class | A. Conjugated proteins | [
"Conjugated proteins",
"Unconjugated protein",
"Simple protein",
"Hemoglobin binding protein"
] | For red blood cells, the membrane oligosaccharides that determine the antigenic natures of the ABO substances appear to be mostly present in glycosphingolipids, whereas in secretions the same oligosaccharides are present in glycoproteins. Some examples of conjugated proteins are lipoproteins, glycoproteins, phosphoprot... | medmcqa | medmcqa_0005541 |
Which of the following hormones stimulates gastric emptying _________ | A. Gastrin | [
"Gastrin",
"Secretion",
"CCK",
"Gastric inhibitory peptide"
] | Gastrin stimulates gastric emplying.
CCK, secretin, gastric inhibitory peptide (GIP) inhibits gastric emptying. | medmcqa | medmcqa_0007102 |
Lottery balls numbered consecutively from one through one hundred are placed in a spinner. If one ball is drawn at random, what is the probability that it will have the number 3 on it exactly once? | A. 18/100 | [
"18/100",
"1/10",
"11/100",
"19/100"
] | Probability = No of balls with exactly one 1 / total number of balls
= {3,13, 23, 30,31, 32, 34 to 39, 43,53,63,73,83,93}/100
= 18/100
Answer is A | aqua_rat | aqua_rat_0009084 |
Water is often put through a treatment system before it is used in homes as drinking water. Which is the most likely reason water is treated before people drink it?
A. to remove harmful substances
B. to add color
C. to increase its supply
D. to decrease its temperature
Answer: | A. to remove harmful substances
| [
""
] | Let's analyze the question and the provided answer choices step by step:
1. **Understanding Water Treatment**: The main purpose of water treatment is to prepare water for safe consumption. This process typically involves several methods aimed at ensuring that the water is free from contaminants that could pose health ... | mmlu | mmlu_0000664 |
Who is called the father of genetics? | D. mendel | [
"raphael",
"Vincent van Gogh",
"Nostradamus",
"mendel"
] | People have long known that the characteristics of living things are similar in parents and their offspring. Whether it’s the flower color in pea plants or nose shape in people, it is obvious that offspring resemble their parents. However, it wasn’t until the experiments of Gregor Mendel that scientists understood how ... | sciq | sciq_0004203 |
Which of these describes a property of all matter? | C. All matter is made of atoms. | [
"All matter gives off light.",
"All matter is attracted by magnets.",
"All matter is made of atoms.",
"All matter dissolves in water."
] | arc_easy | arc_easy_0000552 | |
Felty syndrome | A. Splenomegaly and neutropenia | [
"Splenomegaly and neutropenia",
"Nodules in upper lobe of lung and difficulty in breathing",
"Digital ulceration and gangrene",
"Multiple finger deformities"
] | Felty's syndrome is an extra aicular manifestation of rheumatoid ahritis.It is the association of splenomegaly & neutropenia with RA. Common features include spmenomegaly, lymphadenopathy,weight loss,skin pigmentation ,recurrent infections ,nodules,vasculitis,leg ulcers. | medmcqa | medmcqa_0008287 |
What takes both the shape and the volume of their container? | A. gases | [
"gases",
"tissues",
"fluids",
"solids"
] | Solids have a fixed volume and a fixed shape. Liquids have a fixed volume but take the shape of their container. Gases take both the volume and the shape of their container. | sciq | sciq_0001678 |
A science class is taking a field trip to a forest to observe and study birds. Which tool would be most helpful for observing birds? | B. binoculars | [
"beakers",
"binoculars",
"safety goggles",
"microscopes"
] | arc_easy | arc_easy_0001516 | |
A car drives 60 miles on local roads at 20 mph, and 195 miles on the highway at 65 mph, what is the average speed of the entire trip? | D. 43 mph | [
"36 mph",
"40 mph",
"44 mph",
"43 mph"
] | So The Answer is Plainly D....
we have a general relation for speed , time and distance : v (velocity) * t ( time)= d (distance)
for first part we have d=60 miles , and v= 20 mph so we can obtain time : 20*t = 60 Or t= 60/20 = 3 hours the needed time to cover 60 miles
in the same way we should divide 195 to 65 to find ... | aqua_rat | aqua_rat_0003140 |
Is the heat of reaction positive or negative for an endothermic reaction? | B. positive | [
"Negative",
"positive",
"Both",
"Neither"
] | Because the heat is absorbed by the system, the 177.8 kJ is written as a reactant. The heat of reaction is positive for an endothermic reaction. | sciq | sciq_0004386 |
What were the first life forms found on earth similar to? | C. bacteria | [
"viruses",
"ferns",
"bacteria",
"mold"
] | Life on Earth began about 3.5 to 4 billion years ago. The first life forms were single-celled organisms similar to bacteria. The first multicellular organisms did not appear until about 610 million years ago. Many different types of organisms evolved during the next ten million years, in an event called the Cambrian Ex... | sciq | sciq_0007446 |
The only obvious difference between boys and girls at birth is what type of organs? | B. reproductive | [
"digestive",
"reproductive",
"nervous",
"respiratory"
] | The only obvious difference between boys and girls at birth is their reproductive organs. However, even the reproductive organs start out the same in both sexes. | sciq | sciq_0006349 |
Which is the most essential fatty acid? | B. Linoleic acid | [
"Linolenic acid",
"Linoleic acid",
"Arachidonic acid",
"Oleic acid"
] | Most essential fatty acid is Linoleic acid (18-C, 2 double bonds). Linoleic acid Precursor of omega-6. Synthesize : Gamma Linolenic acid Arachidonic acid. Polyunsaturated fatty acids / Essential Fatty Acids (EFA) Cannot be synthesized in body. Enzymes that can introduce double bonds beyond 9th carbonare absent in human... | medmcqa | medmcqa_0008423 |
What category of joints is immovable? | C. synarthrosis | [
"sporozoans",
"amphiarthroses",
"synarthrosis",
"diarthroses"
] | Classification of Joints on the Basis of Function The functional classification divides joints into three categories: synarthroses, amphiarthroses, and diarthroses. A synarthrosis is a joint that is immovable. This includes sutures, gomphoses, and synchondroses. Amphiarthroses are joints that allow slight movement, inc... | sciq | sciq_0005005 |
A genetic mutation has caused the fur color of field mice to contrast with their environment. This type of mutation will most likely | B. harm the mice. | [
"benefit the mice.",
"harm the mice.",
"increase reproductive rates.",
"decrease competition for resources."
] | arc_easy | arc_easy_0001236 | |
The ancient greek philosopher aristotle thought that all matter consists of just four what, which he identified as earth, air, water, and fire? | B. elements | [
"structures",
"elements",
"ingredients",
"compounds"
] | The idea of elements is not new. It dates back about 2500 years to ancient Greece. The ancient Greek philosopher Aristotle thought that all matter consists of just four elements. He identified the elements as earth, air, water, and fire. He thought that different kinds of matter contain only these four elements but in ... | sciq | sciq_0007396 |
Water is the solvent in solutions called acids and? | C. bases | [
"nutrients",
"alkalines",
"bases",
"proteins"
] | Water is the solvent in solutions called acids and bases. To understand acids and bases, it is important to know more about pure water, in which nothing is dissolved. In pure water (such as distilled water), a tiny fraction of water molecules naturally breaks down, or dissociates, to form ions. An ion is an electricall... | sciq | sciq_0004403 |
How do cancer cells typically spread from one part of the body to another? | A. bloodstream | [
"bloodstream",
"liver",
"kidneys",
"plasma"
] | Sometimes cancer cells break away from a tumor. If they enter the bloodstream, they are carried throughout the body. Then, the cells may start growing in other tissues. This is usually how cancer spreads from one part of the body to another. Once this happens, cancer is very hard to stop or control. | sciq | sciq_0011260 |
If the sides of a triangle are 65 cm, 60 cm and 25 cm, what is its area? | D. 750 cm^2 | [
"350 cm^2",
"850 cm^2",
"550 cm^2",
"750 cm^2"
] | The triangle with sides 65 cm, 60 cm and 25 cm is right angled, where the hypotenuse is 65 cm.
Area of the triangle
= 1/2 * 60 * 25
= 750 cm^2
Answer: D | aqua_rat | aqua_rat_0006083 |
Greater than a single codon coding for same amino acid is known by the term? | A. Degeneracy | [
"Degeneracy",
"Transcription",
"Universality",
"Frame shift mutation"
] | More than one codon coding for same amino acid is known as degeneracy. The third nucleotide in a codon is less impoant than the first two in determining the specific amino acid to be incorporated, and this accounts for most of the degeneracy of the code. Genetic codon is unambiguous which means a specific codon indicat... | medmcqa | medmcqa_0002747 |
The fluoride ion concentration in aqueous solution of acidulated phosphate fluoride solution is- | C. 1.23% | [
"1.32%",
"2.23%",
"1.23%",
"2.32%"
] | An aqueous solution of acidulated phosphate fluoride is prepared by dissolving 20 grams of sodium fluoride in 1 liter of 0.1 M phosphoric acid and to this is added 50% hydrofluoric acid to adjust the pH at 3.0 and fluoride ion concentration at 1.23%. It is also called as Brudevold's solution. | medmcqa | medmcqa_0008886 |
Which type of energy in gasoline is transformed into mechanical energy in a motorcycle engine? | A. chemical | [
"chemical",
"nuclear",
"magnetic",
"electrical"
] | arc_easy | arc_easy_0000019 | |
Anticipation is seen in | C. Trinucleotide - repeat expansion | [
"Translocation",
"Chromosome breaking",
"Trinucleotide - repeat expansion",
"Mitochondrial mutation"
] | Ref: Robbin's Pathology, 9th ed. pg. 168* Anticipation is a phenomenon where by the symptoms of a genetic disorder become apparent at an earlier age as it is passed to next generation. In most cases, an increased severity of symptoms is also noted.* In triplet nucleotide repeat mutation, the DNA fragment is unstable an... | medmcqa | medmcqa_0000519 |
Jill’s compact disc player randomly plays a song, so that no song is repeated before the entire album is played. If Bill plays a disc with 18 songs, what are the chances that the third song he hears will be his favorite? | A. 1/18 | [
"1/18",
"1/12",
"1/11",
"3/14"
] | The player plays the songs on the album at random, so there are 18 songs that can be the third one played. Only 1 of these ways will result in Bill's favorite song being the third one played.
Total outcomes ==> 18
Total positive outcomes ==> 1
Correct answer is A) 1/18 | aqua_rat | aqua_rat_0004246 |
Prions are slow-acting, virtually indestructible infectious proteins that cause diseases of what vital organ in mammals? | D. brain | [
"heart",
"liver",
"lung",
"brain"
] | sciq | sciq_0008379 | |
Deer ticks are vectors for the bacteria that cause what disease? | B. lyme | [
"mad cow",
"lyme",
"malaria",
"Dengue fever"
] | Deer ticks are vectors for the bacteria that cause Lyme disease. The ticks are actually very small and may go unnoticed. | sciq | sciq_0001402 |
Which of the following is not a component of TPN | C. Fibre | [
"Aminoacids",
"Fats",
"Fibre",
"Vitamins"
] | TPN can be administered either by a catheter inseed in the central vein or a peripheral line. In the early days of paren- teral nutrition, the only energy source available was hypeonic glucose, which, being hypeonic, had to be given into a cen- tral vein to avoid thrombophlebitis. In the second half of the last century... | medmcqa | medmcqa_0005610 |
What is the diffusion of water through a semipermeable membrane according to the concentration gradient of water across the membrane | D. osmosis | [
"Gravity",
"mirrors",
"nutrients",
"osmosis"
] | Osmosis Osmosis is the diffusion of water through a semipermeable membrane according to the concentration gradient of water across the membrane. Whereas diffusion transports material across membranes and within cells, osmosis transports only water across a membrane and the membrane limits the diffusion of solutes in th... | sciq | sciq_0001305 |
What kind of cell is a cell with two chromosomes? | B. diploid cell | [
"mutated cell",
"diploid cell",
"neurotic cell",
"haploid cells"
] | sciq | sciq_0005600 | |
What controls the shape of a developing zygote early in its development? | B. gap genes | [
"storage genes",
"gap genes",
"chromosomes",
"DNA"
] | Gap genes control the shape of a developing zygote early in its development. Gap mutants are missing segments in their embryos. These genes are highly regulated. | sciq | sciq_0011278 |
Surface tension comes from the fact that particles at the surface of a liquid do not experience interactions from all directions which leads to what on the surface? | A. imbalance of forces | [
"imbalance of forces",
"degradation of forces",
"waves",
"floating particles"
] | Surface tension comes from the fact that particles at the surface of a liquid do not experience interactions from all directions, leading to an imbalance of forces on the surface. Surface tension is responsible for several well-known behaviors of liquids, including water. Liquids with high surface tension tend to bead ... | sciq | sciq_0006668 |
Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | A. Both are chemical changes. | [
"Both are chemical changes.",
"Both are only physical changes.",
"Both are caused by cooling.",
"Both are caused by heating."
] | Step 1: Think about each change.
Chemicals in a battery reacting to power a flashlight is a chemical change. When the flashlight is turned on, the chemicals in the battery react with each other to form new chemicals. This creates electricity, which powers the lightbulb.
A sandwich rotting is a chemical change. The matt... | scienceqa_textonly | scienceqa_textonly_0000628 |
2056 x 987 = ? | B. 2029272 | [
"1936372",
"2029272",
"1896172",
"1923472"
] | =2056 x 987
=2056 x (1000 - 13)
=2056 x 1000 - 2056 x 13
=2056000 - 26728
=2029272
Answer is B | aqua_rat | aqua_rat_0008198 |
A reduction of 15% in the price of oil enables a house wife to obtain 4kgs more for Rs.1200, what is the reduced price for kg? | D. 45 | [
"43",
"55",
"35",
"45"
] | 1200*(15/100) = 180 ---- 4
? ---- 1 => Rs.45
Answer:D | aqua_rat | aqua_rat_0007386 |
Which piece of lab equipment is necessary to determine the mass of 2 teaspoons of sand? | B. balance | [
"glass beaker",
"balance",
"eye dropper",
"graduated cylinder"
] | arc_challenge | arc_challenge_0000812 | |
Newly discovered organisms are now classified based on DNA evidence. Which of the following is most helpful to a researcher classifying a newly discovered organism? | D. gel electrophoresis | [
"fossil record",
"gene splicing",
"selective breeding",
"gel electrophoresis"
] | arc_challenge | arc_challenge_0000441 | |
In a competitive examination in State A, 6% candidates got selected from the total appeared candidates. State B had an equal number of candidates appeared and 7% candidates got selected with 81 more candidates got selected than A. What was the number of candidates appeared from each State? | B. 8100 | [
"7000",
"8100",
"6000",
"5000"
] | State A and State B had an equal number of candidates appeared.
In state A, 6% candidates got selected from the total appeared candidates
In state B, 7% candidates got selected from the total appeared candidates
But in State B, 81 more candidates got selected than State A
From these, it is clear that 1% of the total ap... | aqua_rat | aqua_rat_0009739 |
At The KHOOL Company, high quality and low quality solar reflecting sunglasses are made, where 70 percent of the sunglasses made are high quality and 25 percent are low quality (defective sunglasses are tossed away into the recycle bin, but must be counted as product produced). If there are 50 sunglasses made per day t... | C. 1,000 | [
" 100",
" 1,800",
" 1,000",
" 200"
] | Let the total number of sunlasses produced be x
% of high quality sunglasses = 70%
% of low quality sunglasses = 25%
% of sunglasses defective = 100% - 95% = 5%
But this number is given as 50
so 5% of x = 50 and x = (50)(100/5))
x = 180
Therefore there a total of 1,000 sunglasses made per day.
Correct answer - E | aqua_rat | aqua_rat_0008883 |
Poached egg colony on potassium tellurite agar is characteristic of | C. C. diphtheriae mitis | [
"C. diphtheriae gravis",
"C. diphtheriae intermedius",
"C. diphtheriae mitis",
"C. Jeikeium"
] | Daisy head - Gravis
Frog's egg colony - Intermedius
Poached egg - Mitis. | medmcqa | medmcqa_0001750 |
A vending machine randomly dispenses four different types of fruit candy. There are twice as many apple candies as orange candies, twice as many strawberry candies as grape candies, and twice as many apple candies as strawberry candies. If each candy cost $0.5, and there are exactly 90 candies, what is the minimum amou... | D. $41.50 | [
"$3.00",
"$20.75",
"$22.50",
"$41.50"
] | Let number of Apple , Orange , strawberry and grape candies be A, O ,S and G respectively .
A= 2O
S= 2G
A= 2S
A= 4G
A+O+S+G = 90
=>A + A/2 + A/2 +A/4 = 90
=> 9A/4 = 90
=> A = 40
O = 20
S = 20
G = 10
Cost of each candy = .5 $
Mininum amount of money required to guarantee that you would buy at least three of each type of... | aqua_rat | aqua_rat_0005478 |
The hepatitis virus attacks only cells of what organ? | A. liver | [
"liver",
"kidney",
"lungs",
"brain"
] | How Viruses Infect Specific Organs Specific glycoprotein molecules exposed on the surface of the cell membranes of host cells are exploited by many viruses to infect specific organs. For example, HIV is able to penetrate the plasma membranes of specific kinds of white blood cells called T-helper cells and monocytes, as... | sciq | sciq_0003651 |
Liquids that mix with each other in all proportions are said to be miscible, maning they have infinite mutual what? | B. solubility | [
"salinity",
"solubility",
"viscosity",
"insolubility"
] | Solutions of Liquids in Liquids We know that some liquids mix with each other in all proportions; in other words, they have infinite mutual solubility and are said to be miscible. Ethanol, sulfuric acid, and ethylene glycol (popular for use as antifreeze, pictured in Figure 11.14) are examples of liquids that are compl... | sciq | sciq_0006952 |
Pain along medial aspect of arm in a post mastectomy patient is due to? | B. Intercostobrachial neuralgia | [
"Phantom breast pain",
"Intercostobrachial neuralgia",
"Neuroma pain",
"Other nerve injury pain"
] | ANSWER: (B) Intercostobrachial neuralgiaREF: Medical care of cancer patients by Sai-Ching Jim Yeung, Carmen R Escalante, Robert F.Gagel page 415Repeat from June 2008POST MASTECTOMY PAINThe breast, axilla and upper are innervated by a variety of nerves; the lateral cutaneous branch of T2 (intercostobrachial nerve), T3 a... | medmcqa | medmcqa_0000325 |
What do you call the illness that occurs when harmful bacteria enter the digestive system in food? | D. food poisoning | [
"meat poisoning",
"bacteria poisoning",
"nutrition poisoning",
"food poisoning"
] | illness that occurs when harmful bacteria enter the digestive system in food; commonly called food poisoning. | sciq | sciq_0008093 |
In baseball, the batting average is defined as the ratio of a player’s hits to at bats. If a player had anywhere from 6 to 8 at bats in a recent game and had anywhere from 3 to 4 hits in the same game, the player’s actual batting average for that game could fall anywhere between | C. 0.37 and 0.75 | [
"0.25 and 0.30",
"0.25 and 0.75",
"0.37 and 0.75",
"0.33 and 0.50"
] | Average Range = Hits to Bats i.e 3/8 to 4/6 = 0.37 to 0.66
Answer: C | aqua_rat | aqua_rat_0007041 |
2) An bus covers a certain distance at a speed of 240 kmph in 5 hours. To cover the samedistance in 1hr, it must travel at a speed of? | B. 720 km/hr | [
"700 km/hr",
"720 km/hr",
"740 km/hr",
"780 km/hr"
] | Distance = (240 x 5) = 1200 km.
Speed = Distance/Time
Speed = 1200/(5/3) km/hr. [We can write 1 hours as 5/3 hours]
Required speed = 1200 x 3 km/hr = 720 km/hr.
B | aqua_rat | aqua_rat_0006739 |
Parasitism, mutualism, and commensalism are all examples of what type of biological relationship? | B. symbiosis | [
"reproduction",
"symbiosis",
"evolution",
"adaptation"
] | sciq | sciq_0003460 | |
Ice cream in a bowl changed from solid to liquid in a few minutes. Which of the following most likely caused this change? | B. Heat was added to the ice cream. | [
"Bacteria grew in the ice cream.",
"Heat was added to the ice cream.",
"Water evaporated from the ice cream.",
"Frozen berries were sprinkled on the ice cream."
] | arc_easy | arc_easy_0001960 | |
Which one of the following is not considered for screening? | C. Cost of the test | [
"Disease burden",
"Physician's knowledge of the disease",
"Cost of the test",
"Treatment efficacy"
] | .screening differs from periodic health examinattion,in the following respects that 1.capable of wide application 2.relatively inepensive. 3.reqires little physician time,only required to interpret the results. ref:park&;s textbook,ed 22,pg no 127 | medmcqa | medmcqa_0008500 |
Which of the following is not an absolute contraindication for tooth extraction: | B. Acute infections. | [
"Central hemangioma.",
"Acute infections.",
"Arteriovenous malformation.",
"Aneurysm."
] | In case of acute infections, extraction can be done under antibiotic coverage. | medmcqa | medmcqa_0001121 |
The cochlea is a shell-like structure that is full of fluid and lined with nerve cells called what? | C. hair cells | [
"sperm cells",
"red cells",
"hair cells",
"brain cells"
] | The stirrup passes the amplified sound waves to the inner ear through the oval window (see Figure above ). When the oval window vibrates, it causes the cochlea to vibrate as well. The cochlea is a shell-like structure that is full of fluid and lined with nerve cells called hair cells. Each hair cell has tiny hair-like ... | sciq | sciq_0002045 |
Jerry began driving from home on a trip averaging 30 miles per hour. How many miles per hour must Carla drive on average to catch up to him in exactly 3 hours if she leaves 30 minutes after Jerry? | A. 35 | [
"35",
"55",
"39",
"40"
] | Carla starts 30 minutes later and it takes 3 hr for carla to meet Jerry
So Jerry total time travelled = 3hr + 30 minutes
Jerry distance = 30 * (3 1/2) = 105
so carla need to travle 105 to meet Jerry in 3 hrs
speed of carla = 105/3 = 35 miles per hour
Answer is A | aqua_rat | aqua_rat_0008032 |
Commonest cause of periumbilical pain after 30 min.of TURP done under spinal anesthesia with Bupivacaine | B. Perforation of bladder | [
"Meteorism",
"Perforation of bladder",
"Recovery from bupivacaine anaesthesia",
"Mesentery aery ischemia"
] | Perforation of bladder is one of the complications of TURP. It can present with periumblical pain. This pt. experiences pain 30 minutes after TURP. This is because he is under spinal anesthesia. In this pt. the effect of spinal anesthesia terminates 30 min. after the operation. Now he is able to perceive the pain of bl... | medmcqa | medmcqa_0000704 |
A hemispherical bowl is made of 0.5 cm thick steel. Inner radius of the bowl is 4 cm. The volume of steel used in making the bowl is | B. 56.83 cm3 | [
"55.83 cm3",
"56.83 cm3",
"113.67 cm3",
"58.83 cm3"
] | inner r= 4
outer R=4.5
formula= 2/3*22/7(R^2-r^2)
(2/3) * (22/7) *(4.5*4.5*4.5 - 4*4*4)
=56.83
ANSWER:B | aqua_rat | aqua_rat_0000154 |
What do tadpoles turn into? | A. frogs | [
"frogs",
"fish",
"snakes",
"insects"
] | Frogs develop from tadpoles, which develop from eggs. Notice the formation of the two powerful back legs used for jumping. | sciq | sciq_0008095 |
A, B, C and D enter into partnership. A subscribes 1/3 of the capital B 1/4, C 1/5 and D the rest. How much share did A get in a profit of Rs.2400 ? | D. s. 800 | [
"s. 832",
"s. 830",
"s. 822",
"s. 800"
] | Let the total amount in the partnership be 'x'.
Then A's share = x/3
B's share = x/4
C's share = x/5
D's share = x - (x/3 + x/4 +x/5) = 13x/60
A : B : C : D = x/3 : x/4 : x/5 : 13x/60 = 20 : 15 : 12 : 13
A's share in the profit of Rs. 2400 = 20 (2400/60) = Rs. 800.
Answer: E | aqua_rat | aqua_rat_0000336 |
During which process does a caterpillar become a butterfly? | B. metamorphosis | [
"fertilization",
"metamorphosis",
"asexual reproduction",
"biological adaptation"
] | arc_easy | arc_easy_0000522 | |
Which natural event can dry out plants and cause wildfires? | A. drought | [
"drought",
"earthquake",
"flood",
"tornado"
] | arc_easy | arc_easy_0001933 |
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