Biology, asked by irenemathew3, 16 days ago

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​

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Answered by saiyedsidra0783
14

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

Answered by SushmitaAhluwalia
10

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

#SPJ2

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