How does RNA polymerase know where to start transcribing a gene into mRNA?

A. The ribosome directs it to the correct portion of the DNA molecule.
B. RNA polymerase starts when the enzyme attaches to a certain nucleotide sequence called a promoter at the beginning of a gene.
C. It starts at one end of the chromosome.
D. Transfer RNA acts to translate the message to RNA polymerase.


B. RNA polymerase starts when the enzyme attaches to a certain nucleotide sequence called a promoter at the beginning of a gene.

Biology & Microbiology

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