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Question

RNA polymerase is an enzyme that helps in the first step of gene transmission, i.e., transcription. Transcription is the transfer of genetic information from

A
DNA to RNA
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B
tRNA to mRNA
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C
DNA to mRNA
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D
mRNA to tRNA
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Solution

The correct option is B DNA to mRNA
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into mRNA by the enzyme RNA polymerase. The DNA sequence is read by an RNA polymerase, which produces complementary, antiparallel RNA strand called primary transcript.
General steps involved in transcription are:
A) Binding with the promoter region of the DNA
B) Separation of the strands of the DNA helix.
C) Addition of RNA nucleotides and formation of an RNA strand
D) RNA further processed through polyadenylation, capping and splicing activities.
So, the correct option is 'DNA to mRNA'.

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