Multiple Choice
A child who has inherited sickle-cell disease alleles from both parents does not exhibit the symptoms of a homozygote.What could account for this outcome?
A) One of the alleles has expanded triplet repeats.
B) One of the alleles has undergone a deletion.
C) One of the alleles has undergone a spontaneous mutation.
D) One of the alleles has undergone a reversion.
E) One of the alleles has been duplicated.
Correct Answer:

Verified
Correct Answer:
Verified
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