(ALD) is a recessive, X-linked disease resulting in defective enzymes attacking myelin in the nervous system...
(ALD) is a recessive, X-linked disease resulting in defective enzymes attacking myelin in the nervous system (XA). If an unaffected father and a heterozygous mother have children. What is the percent chance of boys having ALD? What is the percent chance that girls?
Homework Answers
The cross would be as follows:
Father (XY) x Mother (XXa)
that would give the offsprings: XX, XXa, XY, XaY(Affected)
And since the disease in recessive in nature, heterozygous individuals would not be affected either.
% chance of boy having ALD = 50%
% chance of girl having ALD = 0%
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