You either do not have a Javascript capable browser, or have Javascript turned off. Please either upgrade to Netscape 4, Internet Explorer 4 or higher, or turn Javascript back on if you already have one of these.

Introductory Animal Genetics
Animal Science 221

Phenotypic Ratios

In cats, the sex-linked locus for black and orange color has alleles T for black and t for orange. These alleles are codominant; thus, Tt produces the tortoiseshell.

An autosomal locus for spotting has a dominant allele for spotting, S, and a recessive allele for no spotting. The XTXtS- genotype is the calico.

Choose a mating:

XtXtSs x XTYSs

XTXtSs x XTYss      

     

  Solid black female
  Spotted black female
  Tortoiseshell female
  Calico female
  Solid orange female
  Spotted orange female
  Solid black male
  Spotted black male
  Solid orange male
  Spotted orange male



Return to: Animal Science 221

Home page: Animal Science at Cornell University


For problems or comments on this web page, contact the Animal Science Webmaster