How many genes does a human Y chromosome carry?
a. 100
b. 1,400
c. 2,800
d. 14,000
e. 28,000
ANSWER: a
Biology & Microbiology
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Boa constrictors on an island are an example of a(n) ______.
A. cell B. organ C. organism D. population E. ecosystem
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Inbreeding depression, the reduction in fitness of inbred organisms, often results from the reduced level of what (within the gene pool)?
What will be an ideal response?
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Ian Wilmut successfully cloned Dolly the sheep from a fully differentiated sheep cell. This type of cloning is known as
A. stem cell cloning. B. reproductive cloning. C. therapeutic cloning. D. gene therapy cloning.
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