Multiple Choice
A couple have a child with Tay-Sachs disease.What is (are) their genotype(s) ?
A) both are heterozygous
B) one is homozgous dominant and the other is homozgous recessive
C) both are homozygous dominant
D) both are homozygous recessive
E) more than one of these is possible
Correct Answer:
Verified
Correct Answer:
Verified
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