Curved thumb

I. Fenton ifenton at hgmp.mrc.ac.uk
Mon Oct 14 13:17:12 EST 1996


TaroLover <tarolove at interserve.com.hk> wrote:
>My student is a twin, he has a right curved thumb and left straight
>thumb. But his elder btother has a left curved thumb and right
>straight thumb. But their father and mother are both right straight
>thumb and left straight thumb.
>How to explain the above event?
>Would any Biology experts can answer my question, please send me a
>E-mail. Thank You! :)

well, i'm no biology 'expert', but i've done some analysis.  the
first question for you is are these twins monozygotic or
not ?  it makes a big difference to the question/answer...

Iain.







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