Independent assortment predicts a 9:3:3:1 ratio with four different phenotypes in the F2 progeny. If the alleles are epistatic, what would you predict?
A) more than four phenotypes
B) fewer than four phenotypes
C) heterozygotes with a novel phenotype between the dominant and recessive homozygotes
D) 1/3 of the progeny with the dominant phenotypes and 2/3 recessive
E) no change in the 9:3:3:1 ratio
B
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When testosterone levels in a male are high
A. GnRH production is inhibited. B. FSH release is stimulated. C. LH release is inhibited. D. GnRH release is stimulated. E. both GnRH production and LH release are inhibited.
what is the environmental cofactor for hBV?
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