Pigment of chicken feathers is regulated by two genes, the gene for feather pigment C, and a gene that inhibits pigment production, I. A mother chicken, who is heterozygous for gene C, and heterozygous for gene I, is crossed with a "father chicken, who is homozygous recessive" for the pigment gene, and heterozygous for gene I. Inhibition is dominant to uninhibited, pigmented feathers are dominant to unpigmented feathers. What are the potential genotypes of the gametes produced by the mother for these two genes?

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Biology

10 July, 17:44

Pigment of chicken feathers is regulated by two genes, the gene for feather pigment C, and a gene that inhibits pigment production, I. A mother chicken, who is heterozygous for gene C, and heterozygous for gene I, is crossed with a "father chicken, who is homozygous recessive" for the pigment gene, and heterozygous for gene I. Inhibition is dominant to uninhibited, pigmented feathers are dominant to unpigmented feathers. What are the potential genotypes of the gametes produced by the mother for these two genes?

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Mallory Ayala · Answer 1

The potential gamentes' genotypes are CI, Ci, cI, and ci.

Explanation:

The mother chicken is heterozygous for gene C and heterozygous for gene I. So it's genotype is CcIi.

The potential genotypes of the gametes produced by the mother for these two genes are CI, Ci, cI, and ci, resulting from the combination of each allele for one gene with the other two alleles for the other gene.