How is the phenotypic ratio of F2 generation in a dihybrid cross is different from monohybrid cross?

How is the phenotype ratio of F2 generation in a dihybrid cross is different from monohybrid cross?

If the test cross results in phenotypically dominant offspring then the parent organism is homozygous dominant for the allele in question.

Differentiate Between Monohybrid and Dihybrid Cross.

Dihybrid cross Monohybrid cross
The test cross-ratio is 1:1 The test cross-ratio is 1:1:1:1

How is the phenotypic ratio of F2 generation different from that of the monohybrid cross with the same trait in Antirhinum?

The F2​ progeny of a monohybrid cross showed phenotypic and genotypic ratios as 1 : 2 : 1 unlike that of Mendel’s monohybrid F2​ ratio.

What is phenotypic ratio of a dihybrid cross in F2 generation?

Mendel observed that the F2 progeny of his dihybrid cross had a 9:3:3:1 ratio and produced nine plants with round, yellow seeds, three plants with round, green seeds, three plants with wrinkled, yellow seeds and one plant with wrinkled, green seeds.

What is the phenotypic and genotypic ratio of F2 generation of Monohybrid cross according to mendal’s law of segregation?

1 : 2 : 1.

What is the phenotypic ratio of the F1 generation?

The phenotypic ratio is 9:3:3:1 whereas the genotypic ratio is 1:2:1:2:4:2:1:2:1.

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What is the ratio of F2 generation?

The normal phenotypic ratio in F2 generation is 3:1 and the genotypic ratio is 1:2:1. Option A: In incomplete dominance, a cross of two F1 hybrids results in the production of a similar genotypic and phenotypic ratio- 1:2:1.

Which shows correct phenotype ratio in F2 generation during dihybrid cross?

Hence the correct answer is option (D) 9:3:3:1.