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Assertion : Complementary pairing betwee...

Assertion : Complementary pairing between nucleotides is used to diagnose presence of a specific DNA segment in a mixture
Reason : DNA probes having radioactive isotoped help to detect DNA by autoradiography.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

AI Generated Solution

The correct Answer is:
To solve the assertion and reason question, we can break it down into steps: ### Step 1: Understand the Assertion The assertion states that "complementary pairing between nucleotides is used to diagnose the presence of a specific DNA segment in a mixture." This means that when we have a mixture of DNA, we can identify a specific segment by using the principle of complementary base pairing. ### Step 2: Understand the Reason The reason states that "DNA probes having radioactive isotopes help to detect DNA by autoradiography." DNA probes are short strands of DNA that are labeled with radioactive isotopes, allowing them to bind to specific DNA sequences. Autoradiography is a technique used to visualize the presence of these radioactive probes. ### Step 3: Analyze the Relationship Both the assertion and reason are true statements. The assertion is about the general principle of how specific DNA segments can be identified through complementary pairing. The reason explains a method (using radioactive DNA probes) that utilizes this principle to detect DNA. ### Step 4: Determine the Correctness of Explanation While both statements are true, the reason does not directly explain the assertion. The assertion discusses the general concept of complementary pairing, while the reason focuses on a specific application (autoradiography with radioactive probes). Therefore, the reason is not the correct explanation for the assertion. ### Conclusion Based on the analysis, the correct answer is that both the assertion and reason are true, but the reason is not the correct explanation for the assertion. ### Final Answer **Option B: Both assertion and reason are true, but reason is not the correct explanation for assertion.** ---
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