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20 Jun 2018
None of the females
1/2 of the females
All of the females
Either 1/2 or none of the females depending on whether the black male cat was homozygous for black or heterozygous.
X-inactivation in mammals can lead to mosaic coloration if the gene governing coat color is on the X chromosome. This occurs with cats and can lead to the calico coat color on the back, a mosaic of orange and black patches. If a calico coat female and a black coat male mate and have kittens, what fraction of their female kittens will have a calico coat?
| None of the females | ||
| 1/2 of the females | ||
| All of the females | ||
| Either 1/2 or none of the females depending on whether the black male cat was homozygous for black or heterozygous. |
X-inactivation in mammals can lead to mosaic coloration if the gene governing coat color is on the X chromosome. This occurs with cats and can lead to the calico coat color on the back, a mosaic of orange and black patches. If a calico coat female and a black coat male mate and have kittens, what fraction of their female kittens will have a calico coat?
Nestor RutherfordLv2
22 Jun 2018
