Hey, I enjoyed the study in Y and X's. I gave birth to 5 sons in a row. No Girls LOL. Sara ----- Original Message ----- From: "Best Sellers" <sellers@2xtreme.net> To: <SELLERS-L@rootsweb.com> Sent: Wednesday, October 22, 2003 11:11 AM Subject: [SELLERS] Twins and help > At 10:07 AM 10/22/03 -0500, you wrote: > > >You mention twins. My grandmother said there were lots of twins in the > >Sellers side, I know of a set named Houston and Austin/Austen Sellers. > > Sound like Texans, not Georgians (-;. > > >She was a bit miffed with me when I told her it was the mother that made > >the number, and the father was responsible for the sex of child. > > Fraternal twins result from the fertilization of two ova shed at (usually) > the same time (within a few minutes or hours, although it may rarely be > days or even weeks--in which cases the one or both twins often do not > survive). Fraternal twinning is a function of the mother alone, since > only she "controls" how many eggs are available for fertilization. > > Identical twinning results from a single ovum that, sometime after > fertilization, splits into two (or more: triplets, quads, etc.) zygotes > (although not all such splits are complete--conjoined, "Siamese", twins > come from such incomplete divisions). This splitting is only partially > genetic, but the part that is, is influenced equally by paternal and > maternal heritages. Otherwise, identical twinning is "accidental", a > product of too many environmental contributions to say who's "responsible". > > Sometimes the woman sheds two eggs, and one or both will split resulting in > both fraternal and identical twins (triplets or quadruplets) in the same > gestation/birth. > > Since all women have only a matched pair of "X" chromosomes, mommy's > contribution to the genetic mix that creates the child's body, it make no > difference (to the sex of the child) which of her two ends up in the fetal > nucleus. Daddy does, of course, supply either the matching "X" chromosome > for his daughters, or the complementary "Y" chromosome to his sons. I have > heard of (but cannot verify) that some women have ova that "prefer" one > type of spermatazoan over the other. It sounds like a folk tale more than > medicine, but mothers have been "researching" this for far longer than > scientists. Spermal vigor seems to affect the sex of the child more than > anything else. "Y"-type sperm are a tad more active than "X"-type, so a > few more boys are born than girls on average. But when a couple "try hard" > to conceive, and if the first few attempts in a single day do not result in > success, and because later ejaculations have somewhat more X-type > spermatazoa than Y-types, these couples often have daughters more > frequently than sons. > > Yeah, I know, more than you wanted to know. (-: > > Lehi Erwin SELLERS > son of Cecil Alfred (1917), > son of Joseph Lehi (1870) (whose granddaughters include Karma SELLERS > Burtenshaw), > son of Allen Davenport (1833), > son of Thomas (?) and Diadema CURTIS (?). > Looking for Thomas's father (possibly Christian or John) >

Sara wrote: >Hey, I enjoyed the study in Y and X's. Thank you. I always enjoy sharing what knowledge I have gained over the years. >I gave birth to 5 sons in a row. No Girls >LOL. Keep at it. (-; My sisters were numbers 6 and 7. Lehi Erwin SELLERS son of Cecil Alfred (1917) son of Joseph Lehi (1870) (g-daughters include Karma SELLERS Burtenshaw), son of Allen Davenport (1833), son of Thomas (?) and Diadema CURTIS (?). Looking for Thomas's father (possibly Christian or John)