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In a dihybrid cross involving two genes with dominant epistasis, what is the expected phenotypic ratio of the F2 generation?
9:3:3:1
9:7
12:3:1
1:1:1:1
Answers (1)
In a dihybrid cross involving two genes with dominant epistasis, the expected phenotypic ratio of the F2 generation is 9:7. This ratio results from the interaction of the dominant alleles at one gene locus masking the expression of the other gene. Hence option B is the correct answer.
Option(A) In a dihybrid cross involving two genes with dominant epistasis, the expected phenotypic ratio of the F2 generation is 9:7. This ratio results from the interaction of the dominant alleles at one gene locus masking the expression of the other gene. Hence option A is incorrect.
Option(C) In a dihybrid cross involving two genes with dominant epistasis, the expected phenotypic ratio of the F2 generation is 9:7. This ratio results from the interaction of the dominant alleles at one gene locus masking the expression of the other gene. Hence option C is incorrect.
Option(D) In a dihybrid cross involving two genes with dominant epistasis, the expected phenotypic ratio of the F2 generation is 9:7. This ratio results from the interaction of the dominant alleles at one gene locus masking the expression of the other gene. Hence option D is incorrect.
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