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A family has two male children. One brother has a straight thumb, while the other brother has a bent thumb. What causes the difference
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A family has two male children. One brother has a straight thumb, while the other brother has a bent thumb. What causes the difference

User Kevin Coulombe
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2 Answers

8 votes
Genetics? I hope this helps
User MvG
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12 votes

Answer: They received different alleles from their parents.

Explanation: took the quiz.

User Ericson Willians
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