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  • A dominantly inherited trait affects a child and his gran...
Multiple choice

A dominantly inherited trait affects a child and his grandmother, but neither parent. This best illustrates which of the following principles?

  1. Variable expressivity

  2. Somatic mosaicism

  3. Non-penetrance

  4. New mutation

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A skipped generation for a dominant trait is an example of non-penetrance.

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