Which sex will undergo X chromosome inactivation?
a. None of these choices
b. Females
c. Neither
d. Males
e. Both
b
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The lipopolysaccharides are associated with the
a. outer membrane of Gram-positive bacteria. b. outer membrane of Gram-negative bacteria. c. plasma membrane of Gram-positive bacteria. d. plasma membrane of Gram-negative bacteria. e. plasma membrane of both Gram-positive and Gram-negative bacteria.
Why is it important that you take care of your neurons?
A) They are able to divide rapidly and can be turned into cancer cells. B) They only undergo mitosis after the brain has obtained enough sleep. C) They are unable to divide by mitosis. D) They are very susceptible to mutations of their DNA.
Describe the alteration of five selected biomes by humans. How have different biomes been converted for commercial
or agricultural use? Of those selected, which has undergone the most extensive change? What will be an ideal response?
According to the out-of-Africa hypothesis, when did Homo sapiens migrate to Europe and Asia?
A. 10,000 years before present B. 5 million years before present C. 1000 years before present D. 100,000 years before present E. 1 million years before present