Science · Penetrance and Expressivity
A polydactyly allele shows 60% penetrance and variable expressivity. What would you expect to observe in a family carrying this allele?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1100% of carriers show the trait, but the severity varies only in 40% of carriers.
- 240% of carriers express the trait to the same degree in an identical manner.
- 3100% of carriers show the trait but with 60% maximum severity.
- 460% of carriers show the trait, and among those who show it, severity varies.✓
Correct answer
60% of carriers show the trait, and among those who show it, severity varies.
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