Multiple births, whether fraternal or identical, can run in families due to genetic factors and are on the rise due to fertility treatments.
Multiple births, whether fraternal or identical, can run in families due to genetic factors. Fertility treatments like IVF have significantly increased the incidents of multiple births over the years, leading to a rise in rates. It is important to consider the genetic and environmental influences on twins' development and traits, as highlighted by various studies and examples.
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