Question #6424206Single Choice

Biology

Question

A dominant trait is being studied in a family. Individual I-1 is affected, and I-2 is unaffected. They have four children: II-1, II-2, II-3, and II-4. Only two of the children (II-2 and II-3) are affected. What is the most likely genotype of I-1?

Options

A
    AA (homozygous dominant)
B
    Aa (heterozygous)
C
    aa (homozygous recessive)
D
    It cannot be determined.

Answer & Analysis

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