(There is a breed that is about 95% female/male, what is the breed called?)
Answer :
It's not a breed, it's a color. It's called calico. It's a mix of red, black, white, and brown. Calico cats are nearly always female. This is due to the genes for the orange or black color being on the X chromosome. Female cats have two X chromosomes, while male cats have an X and a Y chromosome. Therefore, the mother cat passes the X chromosome on to her kittens, while the father passes either the X or Y chromosome, thus determining the kittens’ sex. To be a calico cat, the kitten must have an X chromosome that has the orange color and an X chromosome that has the black color. Male calico cats are genetic anomalies, with XXY chromosomes and are sterile and extremely rare.
Calicos are also called Torties or Tortoishell-and-White
