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maks197457 [2]
3 years ago
6

In cats, curled ears result from an allele, Cu, that is dominant over an allele, cu, for normal ears. Black color results from a

n independently assorting allele, G, that is dominant over an allele for gray, g. A gray cat homozygous for curled ears is mated with a homozygous black cat with normal ears. All the F1 cats are black and have curled ears. What phenotypes and proportions are expected from the two crosses?

Social Studies
1 answer:
LiRa [457]3 years ago
6 0

Answer:

Genotype  

GGCuCu : GGCucu: GgCuCu: GgCucu : GGcucu: Ggcucu: ggCuCu: ggCucu: ggcucu

1 : 2: 4: 4: 2: 2: 2: 1

Phenotypic ration    

Black & curled ears : Black & normal ears: Gray & curled ears : Grey & normal years

11: 4: 4: 1

Explanation:

Given -

Curled ears  allele, Cu is dominant over an allele for normal ears , cu.

Also Black color (G) is dominant over allele for gray color (g)

Genotype of parent

gray cat homozygous for curled ears - ggCuCu

homozygous black cat with normal ears- GGcucu

offsprings produced were having genotype - GgCucu

Now cross is carried out between F1 progeny and these are as follows -

GgCucu * GgCucu

Please see the attached file

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