13. Mendelian Genetics
Autosomal Inheritance
Multiple Choice
Multiple ChoiceTom's brother suffers from phenylketonuria (PKU), a recessive disorder. Tom and the brother's parents do not have PKU. What are the chances that Tom is a carrier of the recessive PKU allele?
A
1/4
B
1/3
C
1/2
D
4/3
E
2/3
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