asked 32.2k views
9 votes
A husband and wife have two sons. One boy has a straight thumb, while the other has a bent thumb. What causes this difference?

asked
User Oltman
by
8.1k points

2 Answers

1 vote
The difference in genetics in both parents cause this.
answered
User Tmhs
by
8.2k points
4 votes
Answer
The boys have different alleles
answered
User Levar
by
8.5k points
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