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MyMonthlyCycles Quiz Return to Index
Twins Quiz
How are identical twins created?
Two eggs are ovulated and each is fertilized by separate sperm.
One egg splits into two after two sperm fertilize the same egg.
One egg splits into two after fertilization by a single sperm.
How are fraternal twins created?
Two eggs are ovulated and each is fertilized by separate sperm.
One egg splits into two and is then fertilized by two separate sperm.
One egg splits into two after fertilization by a single sperm.

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