A Fish of Genotype A/a;B/b Is Crossed to a Fish

question 33

Multiple Choice

A fish of genotype a/a;B/b is crossed to a fish whose genotype is A/a;B/b.What proportion of the progeny will be heterozygous for at least one of the genes? (Assume independent assortment.)

• A)1/8
• B)2/8
• C)4/8
• D)5/8
• E)6/8

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