MCAT Question A Day - 9/23/14 - Answer!
What fraction of offspring are likely to display both dominant phenotypes in a dihybrid cross?
A. 1/16
B. 3/16
C. 9/16
D. 15/16
C is correct. From the dihybrid cross Punnett square we have the phenotype ratio 9:3:3:1. Thus, 9 of 16 individuals display both dominant phenotypes.
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C is correct. From the dihybrid cross Punnett square we have the phenotype ratio 9:3:3:1. Thus, 9 of 16 individuals display both dominant phenotypes.
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