★ Linked Gene Quiz
Look at this cross: XBXb x XBY
What proportion of the male children are colorblind?
A. 100%
B. 75%
C. 50%
D. 25%
Preview next quiz:
Why are men 16 times more likely to be color-blind than women?
A. to be color-blind, you must have a Y chromosome
B. to be color-blind, all of your X chromosomes must have the gene
C. color-blindness is caused by testosterone
D. color-blindness is caused by the same gene as baldness
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