It could be triggered by food differences (a woman with 9 boys is going to get MUCH less food than a woman with 1 boy), by general health, tiredness, number of previous pregnancies (hormonal differences). The mechanisms for small gene changes are unbelievably numerous.
On 3/13/06, Jim Davis <[EMAIL PROTECTED]> wrote: > I just don't see how that could be evolutionarily based: how could any > genetic marker be triggered by the number of siblings? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Message: http://www.houseoffusion.com/lists.cfm/link=i:5:200007 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/5 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:5 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.5 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
