Copyright information: Amanda Bright June 2004.  This Punnett Square was not part of the original article.  I created it to help make information clearer for readers.
Research note: Use of color -- how else could this be enhanced? Any ideas about infolinks? 

College of Cat Genetics: Part X
by Patricia Turner

Study Unit 10: Three Gene Pair Crosses Punnett Square

 
Dr+S Dr+s+ DrS Drs+ dr+S dr+s+   drS drs+
Dr+S
Dr+s+
DrS
Drs+
dr+S
dr+s+
  drS
drs+
Dominant

One gene to manifest

Recessive

Two genes to manifest

Intense Color  D dilution d
Normal coat r+ Cornish Rex coat r
Piebald white spotting S solid colour s+