In mice, coat color is due to the inheritance of three genes located on three different chromosomes. The A gene which determine if a yellow band is present on the hair ( A_= yellow band, aa= no yellow band ) and the B gene which determines if the hair is brown ( bb ) or Black ( B_). The A and B genes interact to produce the following coat colors: Agouti: A_B_ Cinnamon: A_bb black: aaB_ brown aabb The third gene is the C gene, which determines if the mice has any hair pigment at all. If the mouse has at least one C allele then the coat color will be determined by the A and B genes as described above. However, if the mouse is cc in genotype it will be albino, regardless of the mouse’s A and B genotype. 1. In mice coat color (a) the C gene is dominant to the A and B genes (b) the cc genotype is epistatic to the A and B genes (c) the C gene is codominant to the A and B genes (d) The A gene is X-linked (e) none of the above
In mice, coat color is due to the inheritance of three genes located on three different chromosomes. The A gene which determine if a yellow band is present on the hair ( A_= yellow band, aa= no yellow band ) and the B gene which determines if the hair is brown ( bb ) or Black ( B_). The A and B genes interact to produce the following coat colors:
Agouti: A_B_
Cinnamon: A_bb
black: aaB_
brown aabb
The third gene is the C gene, which determines if the mice has any hair pigment at all. If the mouse has at least one C allele then the coat color will be determined by the A and B genes as described above. However, if the mouse is cc in genotype it will be albino, regardless of the mouse’s A and B genotype.
1. In mice coat color
(a) the C gene is dominant to the A and B genes (b) the cc genotype is epistatic to the A and B genes (c) the C gene is codominant to the A and B genes (d) The A gene is X-linked (e) none of the above
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