In rabbits, gray color predominates over black, and shaggy coat over smooth one. A black smooth-haired female

In rabbits, gray color predominates over black, and shaggy coat over smooth one. A black smooth-haired female was crossed with a diheterozygous male. Indicate the genotypes of the parents and the genotypes and phenotypes of the first generation hybrids.

Let’s designate the gene that leads to the development of black hair in rabbits as in. For the phenotypic realization of this trait, the gene must be represented as a homozygote – bb.

Accordingly, the gene that determines the gray color of the rabbit coat will be B.

Let the hairy rabbit hair gene be C, then the smooth hair gene will be c.

A black smooth-haired female must be a dihomozygote – vvss. Such a rabbit produces the same type of eggs bc.

Diheterozygous, according to the condition, the male rabbit will be BbCc, which externally will manifest itself in a shaggy gray coat. It produces sperm cells BC, bc, bC and Bc.

All possible offspring of this pair of rabbits will look like this:

rabbits with gray shaggy wool (BbCc) – 25%;

rabbits with black smooth wool (bbcc) – 25%;

rabbits with black shaggy wool (bbСс) – 25%;

rabbits with gray smooth wool (Bbcc) – 25%.