Question

29. In sheep in the homozygous state, the grey colour gene causes the death of the embryos. In the first cross between grey-coated, horned sheep, some of the offspring were black- coated, hornless sheep. In the second cross between grey- coated, horned (homozygous) sheep the offspring received grey wool, horned and black wool, horned in proportion of 2: 1. The genes are not linked. Make scheme for solving the problem. Identify the genotypes of parental individuals, genotypes and phenotypes of possible offspring in the crosses. Explain the phenotypic splits of the offspring in the two crosses.​

Answer 1

Answer:

it is the genitics and eveloution topic in which in

F1 generation the genotipic ratio is 2:1

and the phenotipic ratio is 9:3:3:1

in F2 generation the genotipic ratio is  1:2:1

Explanation:

Answer 2

Answer:

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