caleb has a double row of eyelashes that he inherited from his mother as a dominant trait. His maternal grandfather is the only other relative to have the trait . veronica, a women with normal lashes, falls madly in love with Caleb, and they marry. Their first child , molly, has normal eyelashes. Now veronica is pregnant again and hopes they will have a child with double eyelashes. what chance does their child have of inheriting a double row of eyelashes

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Oseni Oseni · Answer 1 · 2020-09-23T02:36:19+02:00

Answer:

1/2 or 50%

Explanation:

From the illustration, the double row of eyelashes is a dominant trait.

Caleb inherited his double row eyelashes from his mother, meaning that Caleb is heterozygous.

Assuming that the allele for double eyelashes is represented by D, Caleb's genotype would be Dd.

Veronica has normal eyelashes, her genotype would be dd.

Dd x dd

Progeny Dd Dd dd dd

Probability of double eyelashes = 1/2 or 50%

Probability of normal eyelashes = 1/2 or 50%

Hence, the chance of their child inheriting a double row of eyelashes is 1/2 or 50%.