Calico cats are never male because: ?

Cats Calico cats are never male because: ?, a. recessive genes are not usually expressed on their X chromosome. b. male hormones prevent expression of the calico phenotype. c. two different X chromosomes are needed for the expression ...


  #1  
10-12-08, 01:01
  Calico cats are never male because: ?
a. recessive genes are not usually expressed on their X chromosome.

b. male hormones prevent expression of the calico phenotype.

c. two different X chromosomes are needed for the expression of the calico phenotype.

d. two different Y chromosomes are needed for the expression of the calico phenotype.

e. one X chromosome and one Y chromosome are needed for the expression of the calico phenotype.


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