twins and clones

From: Damien Broderick (
Date: Wed Nov 22 2000 - 21:35:59 MST

>Are twins or other multiple identical births caused by fertility drugs
>clones (due to their artificially stimulated origin) or not? By their
>strict definition, they are. Most people would say they were not.

But does this happen?

My impression is that such drugs just promote excess ovulation (and hence
`fraternal' twinning), rather than conducing to splitting a single embryo
shortly after fertilization. The latter would presumably lead swiftly to an
antagonist drug that people might take who wish to *avoid* parenting twins,
triplets, etc, something I haven't heard of.

Damien Broderick

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