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12 questions from this quiz
Gene on sex chromosome
X is larger with many more genes
They only have one X chromosome
Colour blindness & haemophilia
Red and green
About 8%
No, they express it or don't have it
50% chance
Neither allele is fully dominant
Roan (red and white mixture)
1:2:1
1:2:1 vs 3:1 ratio
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