Create app.py

app.py

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+import streamlit as st
+
+# Function to find matches between reference and query sequences
+def find_matches(reference, query):
+    matches = ""
+    for ref_char, query_char in zip(reference, query):
+        if ref_char == query_char:
+            matches += ref_char.upper()
+        else:
+            matches += "-"
+    match_percentage = (matches.count("-") / len(reference)) if len(reference) else 0
+    return matches, round((1 - match_percentage) * 100, 2)
+
+# Streamlit app
+st.title("DNA Sequence Matching 🧬")
+st.subheader("Analyze the similarity between two DNA sequences")
+
+# Input fields for sequences
+reference = st.text_area(
+    "Enter Reference DNA Sequence:",
+    placeholder="e.g., ACTGACTGACTG"
+).strip().upper()
+
+query = st.text_area(
+    "Enter Query DNA Sequence:",
+    placeholder="e.g., ACTGTTTGACTG"
+).strip().upper()
+
+# Validate input
+if st.button("Match DNA Sequences"):
+    if not reference or not query:
+        st.error("Please provide both Reference and Query DNA sequences.")
+    elif len(reference) != len(query):
+        st.error("The Reference and Query sequences must have the same length.")
+    else:
+        # Find matches and calculate percentage
+        matches, percentage = find_matches(reference, query)
+
+        # Display results
+        st.write("**Reference Sequence:**")
+        st.code(reference)
+        st.write("**Query Sequence:**")
+        st.code(query)
+        st.write("**Matching Sequence:**")
+        st.code(matches)
+        st.success(f"Match Percentage: {percentage}%")
+
+st.write("Note: Sequences must be of the same length for accurate matching.")