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SSSSS [86.1K]
4 years ago
13

A bacterial gene (gene A) ordinarily makes a protein that binds to DNA. A nonsense mutation of gene A decreases the expression o

f another gene, gene B. We can conclude that
(A) gene A is a positive regulator of gene B.
(B) gene A is a negative regulator of gene B.
(C) gene B is a negative regulator of gene A.
(D) genes A and B regulate one another.
(E) gene B is a positive regulator of gene A.
Biology
1 answer:
jeka57 [31]4 years ago
6 0

Answer:

The correct answer is (A) gene A is a positive regulator of gene B.

Explanation:

When positive regulation occurs a transcription factor is required to bind at the promoter in order to enable RNA polymerase to start transcription.

RNA means ribonucleic acid and it is a long single-stranded chain of cells that processes protein.

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