Vertebrate cells possess a protein that binds to clusters of 5-methylcytosine and ensures the gene will stay in the off position. This control of gene regulation is a result of

A. translation.
B. promoter expression.
C. operator suppression.
D. methylation.
E. enhancer expression.


Answer: D

Biology & Microbiology

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__________________Indicate whether the statement is true or false.

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Refer to Figure 46-1. Which two figures in the accompanying illustration represent inhalation steps of the respiratory cycle?


a. 1 and 3
b. 1 and 2
c. 2 and 3
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What will be an ideal response?

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