OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The directions found in a strand of DNA are copied onto mRNA during which process?
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replication
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synthesis
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transcription
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translation
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Explanation:
Detailed explanation-1: -Transcription is the process in which a gene’s DNA sequence is copied (transcribed) to make an RNA molecule. RNA polymerase is the main transcription enzyme. Transcription begins when RNA polymerase binds to a promoter sequence near the beginning of a gene (directly or through helper proteins).
Detailed explanation-2: -At this point, RNA polymerase begins moving down the DNA template strand in the 3’ to 5’ direction, and as it does so, it strings together complementary nucleotides. By virtue of complementary base-pairing, this action creates a new strand of mRNA that is organized in the 5’ to 3’ direction.
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