In the family tree below, people with the recessive trait of attached earlobes
are shaded gray.
What must be true about the person labeled "A"?
O
A. It is a female with two dominant alleles.
O
B. It is a female with at least one dominant allele.
O
C. It is a male with at least one dominant allele.
O
D. It is a male with two dominant alleles.
Answers: 2
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In the family tree below, people with the recessive trait of attached earlobes
are shaded gray...
are shaded gray...
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