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

User LcSalazar
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2 Answers

3 votes
The genes inherited from their parents.
User Eric Staner
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5.3k points
2 votes

Answer:

they received different alleles from their parents

Step-by-step explanation:

just took on A P E X !

User Kakajan
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