Which of the following causes DNA to wrap tightly

around histones essentially preventing transcription?
a. methylation
b. acetyl CoA
c. nitrogenation
d. dehydration
e. carbonation


Answer: a

Biology & Microbiology

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The process by which successful traits become more common in subsequent generations is called ____

a. speciation b. mutation c. natural selection d. genetic drift

e. gene flow

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The internal membrane structure of the

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The larva in Figure 31-4 is characteristic of:

A. arthropods.
B. mollusks.
C. cnidarians.
D. platyhelminths.
E. nematodes.

Biology & Microbiology

Water is most dense at 4 C

__________________ Indicate whether the statement is true or false.

Biology & Microbiology