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.
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____________________ T cells secrete interleukins that activate other cells in both the cell-mediated and antibodymediated
immune responses. Fill in the blank(s) with the appropriate word(s).
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