GENETICS AND EVOLUTION
MOLECULAR BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The important enzyme required for the process of transcrption from DNA to mRNA is ____
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DNA ligase
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DNA polymerase
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RNA polymerase
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DNA helicase
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Explanation:
Detailed explanation-1: -During transcription, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then processed to form mature mRNA (Figure 1).
Detailed explanation-2: -Gene expression is linked to RNA transcription, which cannot happen without RNA polymerase. However, this is where the similarities between prokaryote and eukaryote expression end.
Detailed explanation-3: -RNA polymerase II3 transcribes protein-coding genes into messenger RNA (mRNA). This 12-subunit enzyme works as a complex that directly influences gene expression through its production of pre-mRNA transcripts.
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