Q.

Why both the strands of DNA of a particular segment are not copied during transcription?

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a

Because DNA molecule with identical sequences will be formed

b

Because DNA molecule with different sequences will be formed

c

Because RNA molecule with different sequences complementary to each other will be formed

d

Because RNA molecule with same sequences will be formed

answer is A.

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Detailed Solution

The strands in the DNA are complementary to each other, not identical. If the two RNAs are formed from both strands then RNAs with different sequences would be formed which can associate by hydrogen bonding to form double stranded RNA and translation will be futile.

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Why both the strands of DNA of a particular segment are not copied during transcription?