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Question

Sometimes the separation of twins is incomplete and these are born attached or remain so even after. What are those twins known as?

A
Fraternal
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B
Dizygotic
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C
Identical
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D
Siamese
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Solution

The correct option is D Siamese
Conjoined or Siamese twins arise by incomplete separation of embryo at about 15 days or more after zygote formation.
They are identical twins, whose bodies are joined.

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