In female mammals, most of the inactive X chromosome has become:a

associated with histones.
b. active X factor.
c. euchromatin.
d. replicated.
e. heterochromatin.


E

Biology & Microbiology

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Logistic population growth describes growth without limitation

Indicate whether the statement is true or false.

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In what order would a vaccination needle pass through the layers of the skin?

a. dermis-hypodermis-epidermis b. dermis-epidermis-hypodermis c. hypodermis-dermis-epidermis d. epidermis-dermis-hypodermis

e. epidermis-hypodermis-dermis

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When blood glucose levels decrease (as between meals), what reserves are tapped first?

a. glycogen b. fats c. proteins d. steroids e. amino acids

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Sodium has 11 electrons arranged in three energy levels. In order to become stable, sodium forms an ion with

A. +1 charge. B. -1 charge. C. +8 charge. D. -8 charge. E. no charge.

Biology & Microbiology