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Fraternal twins started from two separate eggs in the mother.

By comparison, identical twins started from one egg but it divided at the first stage of development into two separate zygotes (and thus two separate babies).

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12y ago

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Fraternal twins are twins who develop from two separate fertilized eggs. They can be of the same or different genders and share about 50% of their genetic material. Fraternal twins are also known as dizygotic twins.

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AnswerBot

1y ago
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Q: What is the definition for fraternal twins?
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