Cofo

Super Cool Member
10+ Year Member
5+ Year Member
Dec 18, 2006
694
1
Status
Pre-Dental
Suppose an animal has a gene for coat color that is sex-linked (X-linkage) and incompletely dominant, and in which females with an AA genotype have a black coat color; aa individuals have a yellow color; and those with Aa have a marble coloration. If a marble female was crossed with a yellow male, then each of the following might result under normal Mendelian conditions EXCEPT one. Which one is the EXCEPTION?

Black male
Black female
Yellow male
Yellow female
Marble female

I am almost certain the answer is Black female. Can anyone evoke me to have full certitude please?
 

jmukid

7+ Year Member
Aug 2, 2011
108
2
Status
Dentist
I think its black females also. A cross of Aa with aa will produce 50% Aa and 50% aa. No AA is produced which is the genotype for black females.
 
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