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Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance1 Mark
Question
In a double stranded DNA, which strand is transcribed and why?
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Answer

The strand having the polarity 3′ → 5′ is transcribed because RNA polymerase polymerises nucleotides only in 5′ → 3′ direction.

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