In a certain species of insect, eye color is controlled by a single gene. The dominant allele (E) codes for black eyes, while the recessive allele (e) codes for red eyes.

How could two parents with black eyes have a red-eyed female offspring?

Question

09-11-2022
Biology

Answered

In a certain species of insect, eye color is controlled by a single gene. The dominant allele (E) codes for black eyes, while the recessive allele (e) codes for red eyes.

How could two parents with black eyes have a red-eyed female offspring?

Answer :

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AnnuG AnnuG · Answer 1 · 2022-11-10T13:22:18-05:00

Two parents with black eyes can give rise to offspring with red eye (ee) which is a recessive trait only when both the parents are heterozygous (Ee) for the trait. This is showed in the cross on the given image.

Recessive condition in the genotype can only occur during homozygous state when both the alleles for the gene are recessive. Recessive alleles are the mutated version of the gene that are not able to produce any effect when present along with a dominant allele.

Heterozygous state of the genotype is when both the alleles for a given trait are different or contrasting. One of the alleles is able to show its effect while the other is not, in a heterozygous condition. Sometimes heterozygous trait can have a phenotype that is different from the dominant and recessive phenotype.

To know more about recessive, here

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In a certain species of insect, eye color is controlled by a single gene. The dominant allele (E) codes for black eyes, while the recessive allele (e) codes for red eyes. How could two parents with black eyes have a red-eyed female offspring?

Answer :

Other Questions

In a certain species of insect, eye color is controlled by a single gene. The dominant allele (E) codes for black eyes, while the recessive allele (e) codes for red eyes.

How could two parents with black eyes have a red-eyed female offspring?