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Widow's peak is dominant to straight hairline, and freckles are dominant to no freckles.
One parent is heterozygous for both traits and one parent has a straight hairline and
no freckles. Use H for hair, and F for freckles. List the genotypes of the parents and
then complete a dihybrid cross for their potential offspring. List the phenotypic ratio
of the offspring once you have completed the cross.


Sagot :

The phenotype ratio would be 25% each for widow's peak and freckles, widow's peak without freckles, straight hairline with freckles, and straight hairline without freckles.

Dihybrid crossing

Genotype of the heterozygous parent: HhFf

Genotype of the other parent = hhff

Crossing the two parents:

HhFf = 1/4 = Widow's peak, freckles

Hhff = 1/4 = Widow's peak, no freckles

hhFf = 1/4 = straight hairline, freckles

hhff = 1/4 = straight hairline, no freckles.

More on dihybrid crossing can be found here:https://brainly.com/question/1185199

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