alleryGenetically, fraternal twins are no more alike than ordinary:
Acousins
Bsiblings
Chalf-siblings
Dstrangers
Answer & Solution
Correct answer: B. siblings
1. Fraternal (dizygotic) twins come from two separate eggs.
2. They share only about 50% of their genes, the same as any other sibling.
3. Identical twins share essentially all of theirs.
_Source: Wikipedia, "Twin study" (rev 1372647321), section "Lead section"_
Keep practising Unit 3A2: Cognitive Development Theories (Piaget & Vygotsky)
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