If all offspring of a cross have the genotype Aa, the parents of the crosses would most likely be ____
a. AA ? aa
b. Aa ? Aa
c. Aa ? aa
d. AA ? Aa
e. aa ? aa
ANSWER: a
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a. metabolism. b. movement. c. growth. d. reproduction. e. energy conversion.
Which of these is an example of hybridization?
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Which trend best describes the levels of atmospheric CO2 since the start of the Industrial Revolution?
a. gradual decrease b. period fluctuations c. steady increase d. no apparent change
Which of the following statements concerning a secondary immune response is false?
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