Interaction of Heredity and Environment

AP Psychology· difficulty 3/5

Dizygotic (fraternal) twins share, on average,

A
$About 75% — more than full siblings$
B
$About 100% — they share identical DNA$
C
$About 25% — the same as half-siblings$
D
$About 50% — the same as any siblings$
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Explanation

Two separate eggs fertilized by two different sperm.

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