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Frequently asked questions
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Twin facts
Do identical twins always look alike?
Even though identical twins are from the same sperm and egg and therefore have exactly the ....
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Is there a 'twinning' gene?
This is a frequently asked question at TRA: “What are my chances of producing twins? ....
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How can I tell if my twins are identical or not?
Parents of twins and twins themselves are often confused about their zygosity. It is human ....
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Can male/female twins ever be identical?
In 99.9% of cases boy/girl twins are non-identical. However, in some extremely rare cases ....
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