Assertion (A): In molecular diagnosis, single stranded DNA or RNA tagged with radioactive molecule is called a probe. Reason (R): A probe always searches and hybridises with its complementary DNA in a clone of cells.
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Probes are used in techniques like Southern blotting to detect specific DNA sequences.
Both (A) and (R) are true and (R) is the correct explanation of (A).
Both (A) and (R) are true, but (R) is not the correct explanation of (A).
(A) is true, but (R) is false.
(A) is false, but (R) is true.
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The Correct Option isA
Solution and Explanation
- Probes are single-stranded DNA or RNA molecules tagged with radioactive or fluorescent labels used in molecular diagnostics.
- They specifically hybridise with complementary sequences in the target DNA, enabling detection in molecular diagnostic techniques.
