In guinea pigs, black dominates over white. What offspring can be expected from black and white homozygotes?
In guinea pigs, black dominates over white. What offspring can be expected from black and white homozygotes? Describe the genotypes and phenotypes of all individuals
Let’s designate the gene that causes the black color of guinea pigs’ fur as C, then the gene that causes the development of white wool in these animals will be c.
Homozygotes with black hair will be recorded, according to the entered designation, as CC;
homozygotes with white hair – cc. The former will produce sex cells C, the latter – c.
If we cross these animals with each other, we get the offspring of the following species:
Сс, which will correspond to the black color of the coat.
Answer: all obtained mice from crossing white homozygotes (cc) with black homozygotes (CC) will be heterozygotes, with black hair (Cc).