Question

Can you, using the Punnett square data work out the genotypic ratio at the F2 stage and fill in the format given? Is the genotypic ratio also 9:3:3:1? S.No. Genotypes found in F2 Their expected Phenotypes​

Answer 1

Answer:

Can you, using the Punnett square data work out the genotypic ratio at the F2 stage and fill in the format given? Is the genotypic ratio also 9:3:3:1? S.No. Genotypes found in F2 Their expected Phenotypes

Answer 2

Punnett square

• The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment.
• It is a helpful tool that helps to predict the probabilities and variations that can come from cross-breeding that can come from cross-breeding.
• The genotypic ratio describes the number of times a genotype would appear in the offspring after a test cross.
• The phenotypic ratio refers to the relative number of offspring manifesting a particular trait or combination of traits.

Considering parents: RRYY × rryy

F₁ Generation: RrYy

Gametes: RY, Ry, r Y, ry

After the Punnete's square

In F2 generation

The genotypic ratio is: 1:2:1: 2:4:2:1:2:1

The phenotypic ratio: 9:3:3:1

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