...variables. It would be very difficult to measure all those precisely, and not worth the effort. Knowing that they will result in heads about half the time and tails the other half is all that we normally need to know. Whether an X or Y sperm will reach the egg first is determined by a similarly complex set of variables, which we normally don't need to know and thus don't care about.
...come up about half the time, and heads the other half. Similarly, in a ejaculation containing 50 to 500 million sperm cells, about half of which are X and half Y, it's reasonable to expect the sex of the fetus to be male about half the time. As I said at the outset, there is a 50/50 chance. But why heads and not tails, and why male and not female? ...
... come up about half the time, and heads the other half. Similarly, in a ejaculation containing 50 to 500 million sperm cells, about half of which are X and half Y, it's reasonable to expect the sex of the fetus to be male about half the time. As I said at the outset, there is a 50/50 chance. But why heads and not tails, and why male and not female? If ...
... will come up about half the time, and heads the other half. Similarly, in a ejaculation containing 50 to 500 million sperm cells, about half of which are X and half Y, it's reasonable to expect the sex of the fetus to be male about half the time. As I said at the outset, there is a 50/50 chance. But why heads and not tails, and why male and not female? If half ...
... will come up about half the time, and heads the other half. Similarly, in a ejaculation containing 50 to 500 million sperm cells, about half of which are X and half Y, it's reasonable to expect the sex of the fetus to be male about half the time. As I said at the outset, there is a 50/50 chance. But why heads and not tails, and why male and not female? If half are males aren...
... will come up about half the time, and heads the other half. Similarly, in a ejaculation containing 50 to 500 million sperm cells, about half of which are X and half Y, it's reasonable to expect the sex of the fetus to be male about half the time. As I said at the outset, there is a 50/50 chance. But why heads and not tails, and why male and not female? It's also reasonable that ...
... to expect that tails will come up about half the time, and heads the other half. Similarly, in a ejaculation containing 50 to 500 million sperm cells, about half of which are X and half Y, it's reasonable to expect the sex of the fetus to be male about half the time. It's also reasonable that it takes several days before genitals form on the fetus. Art http://home.ptd.net/~artnpeg
....rr.com> wrote in news:40939289-2a39-4bf1-9c4d-c067e25b44a8 @i76g2000hsf.googlegroups.com: The sex of a human is determined by the male sperm (only the male has the region on ... becoming a male as it does a female. So what determines whether that SRY gene is activated and the embryo becomes a...
....rr.com> wrote in news:40939289-2a39-4bf1-9c4d-c067e25b44a8 @i76g2000hsf.googlegroups.com: The sex of a human is determined by the male sperm (only the male has the region on the ... of becoming a male as it does a female. So what determines whether that SRY gene is activated and the embryo becomes a ...
..., 2:43 pm, ta <padl...@nc.rr.com> wrote: The sex of a human is determined by the male sperm (only the male has the ...a male as it does a female. So what determines whether that SRY gene is activated and the embryo ... can explain the evolutionary reasons why these factors affect the sex of the child. Evolution helps parents pass on their genes ...
