What role does the enzyme DNA polymerase play in transcription, related to the promoter and terminator sequences on DNA?
It knows when a strand of mRNA should leave the cell's nucleus.
It knows where to begin transcribing and where to stop.
It knows how to synthesize DNA from mismatched codons.
It knows which codons are needed to replace thymine with uracil.

All the options are correct.

DNA dependent RNA polymerase is the main enzyme in case of transcription. This enzyme sits on the promoter region of the DNA that marks the beginning point of the transcription. The end point of the transcriptosome is marked by the poly Adenine tails.

The start codon and the stop codons marks the beginning point and end point of the functional part of the genes.

In the daily life, due to exposure to different mutagens, the DNA strand often gets mutated by point mutations. The DNA dependent RNA polymerase and the DNA dependent DNA polymerase knows the checking mechanism by which they can restore the normal DNA configuration. So all the options given here are correctly matched with the event.

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