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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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smile92 smile92
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11 years ago
In a series of genetics experiments, Mendel testcrossed pea plants of a number of different genotypes. For each of the genotypes shown, indicate the expected phenotypic ratios in the offspring.

a) PpRrYy


b) PpRryy
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#1
11 years ago
a) trihybrid crosses where both parents are heterozygous for all gametes creates a 27: 9: 3:3: 9: 3:3:1 ratio.

b) this will make a 4:3:3:1 ratio because y gamete is irreverent. all offspring will have yy, so it can be taken out of the equation
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