A homozygous milk chocolate easter bunny is crossed with a homozygous dark chocolate easter bunny. assuming dark chocolate is dominant over milk chocolate and the traits segregate according to mendelian genetics, which traits will the offspring express?

Question

Daffodil

Biology

7 December, 04:41

A homozygous milk chocolate easter bunny is crossed with a homozygous dark chocolate easter bunny. assuming dark chocolate is dominant over milk chocolate and the traits segregate according to mendelian genetics, which traits will the offspring express?

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Janelle · Answer 1

Given:

Parental generation

H omozygous dark chocolate easter bunny (WW) = dominant

Homozygous milk chocolate easter bunny (ww) = recessive

According to Mendel law of segregation

Phenotype Homozygous dark x Homozygous milk

Genotype WW ww

Gametes W, W w, w

F1 generation Ww, Ww, Ww, Ww

Result:

All are heterozygous dark chocolate easter bunny (Ww).

F1 x F1

Phenotype Heterozygous dark x Heterozygous dark

Genotype Ww Ww

Gametes W, w W, w

F2 generation WW, Ww, Ww, ww

Result:

Homozygous dark (WW) = 1

Heterozygous dark (ww) = 2

Homozygous milk (ww) = 1