Keysha's mother is homozygous for a dominant allele for unattached earlobes and her father is homozygous for a recessive allele for attached earlobes. What is true about Keysha's earlobes?

A. Keysha has a homozygous genotype.
B. Keysha's phenotype is not predictable from her genotype.
C. Keysha has attached earlobes.
D. Keysha has unattached earlobes.


Answer: D

Psychology

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