Name___________________________________________

catX-Linked Genetics in the Calico Cat

Calico is a coat color found in cats, which is caused by a SEX-LINKED, CODOMINANT allele.

Female cats can be black XBXB, orange XRXR, or calico XBXR
Male cats can be black XBY or orange XRY

1. A black male is crossed with an orange female

punnet square

How many kittens are: orange males? ______ calico females? ______


2. An orange male is crossed with a calico female. Show the Punnett square and list the phenotypes and proportions.

 

 

 

 

 

3. A black male is crossed with a black female. Show the Punnett square and list the phenotypes and proportions.

 

 

 

 

 

 

4. A black male is crossed with a calico female. Show the Punnett square and list the phenotypes and proportions.