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Question
Assertion (A): Sequences of bases in one polynucleotide chain of DNA can determine the sequence of bases in the other chain.
Reason (R): There are three hydrogen bonds between A and T and two between C and G.
Options
Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.
Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.
Assertion (A) is true but reason (R) is false.
Both assertion (A) and reason (R) are false.
MCQ
Assertion and Reasoning
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Solution
Assertion (A) is true but reason (R) is false.
Explanation:
The assertion is true because complementary pairing determines the sequence of the opposite strand. The reason is false: A–T has two hydrogen bonds, while C–G has three.
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