Humans possess about ___ genes for olfactory receptors but only about ___ of these appear to be functional.
A) 1,000,½
B) 500-600,¼ to ½
C) 500-750,¼ to ¾
D) 1,000-2,000,¼ to ½
Correct Answer:
Verified
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A)Are not monogamous
B)Show preference for a
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A)1,000
B)100,000
C)10,000
D)5,000
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