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Rasek [7]
4 years ago
8

In cats, orange coat color is determined by the b allele, and black coat color is determined by the B allele. The heterozygous c

ondition results in a coat pattern known as tortoiseshell. This gene is X-linked. Part A What kinds of offspring would be expected from a cross of an orange male and a tortoiseshell female?
Biology
1 answer:
butalik [34]4 years ago
8 0

Answer:

Xᵇ Xᴮ : tortoiseshell female;

Xᵇ Xᵇ : orange female;

Xᴮ Y: black male;

Xᵇ Y: orange male.

Explanation:

The possible genotypes and phenotypes for coat color in cats is:

<u>Females</u>

  • XᵇXᵇ: orange
  • XᴮXᴮ: black
  • XᴮXᵇ: tortoiseshell

<u>Males</u>

  • XᵇY: orange
  • XᴮY: black

<u>Cross of an orange male and a tortoiseshell female</u>

XᵇY x XᴮXᵇ

The male produces the gametes Xᵇ and Y; the female produces the gametes Xᴮ and Xᵇ.

<u>The expected offspring resulting from the combination of those gametes is:</u>

  • Xᵇ Xᴮ : tortoiseshell female
  • Xᵇ Xᵇ : orange female
  • Xᴮ Y: black male
  • Xᵇ Y: orange male

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