alleryIdentical twins share what share of their genes?
AEssentially all
BAbout one half
CAbout one quarter
DAbout three quarters
Answer & Solution
Correct answer: A. Essentially all
1. Identical (monozygotic) twins come from one fertilised egg.
2. They share essentially 100% of their genes.
3. Fraternal twins share only about 50%, like other siblings.
_Source: Wikipedia, "Twin study" (rev 1372647321), section "Lead section"_
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