Does a man play any part of producing twins?
* The man doesn't directly cause twins. Twins are formed solely within the woman's body.
* The man's contribution is the sperm. If the sperm fertilizes one egg, a singleton pregnancy occurs. If the sperm fertilizes two eggs, fraternal twins are born.
* The woman's body is the key factor. Whether a woman releases one egg (leading to a singleton) or multiple eggs (leading to twins or even triplets, quadruplets, etc.) is influenced by her genetics and various hormonal factors.
In summary: The man's role in twin pregnancies is providing the sperm that fertilizes the eggs. The woman's body determines how many eggs are released and thus how many fetuses develop.
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