How does telomerase, which is not a cause of cancer, nonetheless play a role in its development?
What will be an ideal response?
The enzyme telomerase helps cancerous cells continue to divide by lengthening chromosomal telomeres.
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Antibodies are found in
A) milk. B) mucosal secretions. C) serum. D) milk, mucosal secretions, and serum.
The biosynthetic pathway for chlorophyll includes approximately how many steps?
A. 3 B. 6 C. 10 D. 17 E. 40
Which of the following is TRUE of the hormone glucagon?
A. It is synthesized in the pancreas. B. It stimulates glycogenolysis by the liver. C. It stimulates gluconeogenesis by the liver. D. It is released in response to low blood glucose levels. E. All of the answers provided are correct.
Lake Baikal in Siberia is an ancient lake with a very diverse fauna. This diversity is consistent with the
A. time hypothesis. B. individualistic model. C. organismic model. D. principle of species individuality. E. effects of decreasing latitude and decreasing temperatures.