The genetics service of a large veterinary hospital gets referrals for three or four male tortoiseshell cats every year. These cats are invariably sterile and have underdeveloped testes. How are these tortoiseshell male cats produced?

The proportion of male tortoiseshell cats is very low. This happens because the colors are linked to sex because they are exclusively on the X chromosome, to have two colors (black and orange) must have two X chromosomes from the father and mother .

For a male cat to be tortoiseshell, a genetic anomaly must occur: the presence of two X chromosomes and one Y (XXY).

answer; /// i believe that the correct answer is ( monophasic ); ethinyl estradiol- ethynodiol diacetate is a monophasic oral contraceptive agent; ///

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.