Amy has wavy hair and 6 fingers (an autosomal dominant trait). Which of the following combinations are possible for her parents?
A) 5 only
B) 1 and 2
C) 1, 3, and 4
D) 2, 4, and 5
E) 2 and 4

Name: Amy has wavy hair and 6 fingers (an autosomal dominant trait). Which of the following combinations are possible for her parents? A) 5 only B) 1 and 2 C) 1, 3, and 4 D) 2, 4, and 5 E) 2 and 4
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Question

Amy has wavy hair and 6 fingers (an autosomal dominant trait). Which of the following combinations are possible for her parents? 
A) 5 only 
B) 1 and 2 
C) 1, 3, and 4 
D) 2, 4, and 5 
E) 2 and 4

Quizplus · Accepted Answer

At least one parent must have 6 fingers. Wavy hair is an intermediate trait so must have 2 different alleles.

Amy Has Wavy Hair and 6 Fingers (An Autosomal Dominant