In cats, the gene for black and red color is linked to the sex and is located on the X chromosome and give incomplete

In cats, the gene for black and red color is linked to the sex and is located on the X chromosome and give incomplete dominance, when they are combined, a tortoiseshell color is obtained. What kind of kittens can you expect from crossing? 1) a black cat with a black cat; 2) a black cat with a ginger cat

Let’s designate the chromosome containing the gene that causes the development of red hair as XB, and the chromosome with the gene for black hair color as XC. Tortoiseshell coloration, peculiar exclusively to cats – XBXC.

Black cat – XBXB. Her body will produce XB gametes. Black cat – XBY, it will produce spermatozoa XB and Y. When crossing such cats, offspring should be expected: XBXB – cats with black hair 50%, XBY – black cats 50%;

From crossing the black cat described above with a red cat – XCY, producing spermatozoa XC and Y, one should expect the emergence of: XCXB – tortoiseshell cats, 50% probability; XBY – red cats, 50% chance.