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My understanding of the situation is that the sex of the child is determined by the father, not the mother. Women have only X chromosomes, while men have an X and a Y chromosome. To get a male child, the man's sperm must contribute the Y chromosome to combine with the X chromosome from the woman to get an X+Y combination to make a male child.
Otherwise, if the man contributes an X chromosome, then you have an X from him plus an X from the woman which makes a female child which will have X+X chromosomes.
I have a friend with one girl followed by six boys. That poor girl cried every time she was told she was getting another baby brother. Her two cousins are boys, too.
On the other hand, my mother-in-law was an only child with all girl cousins, and her cousins' children were girls too. She told her husband that she was sure to have only girls--that's all the women in her family could make!
They had two boys, go figure.
She should've done a little research. It's the man's sperm that determines the gender. So the fact that girls run in mom's family doesn't mean anything.
I learned this when someone pointed out that King Henry VIII blaming his wives for not giving him a male heir was unfair, since HE was the problem.
Odds of getting a girl = 50%
Odds of getting a boy = 50%
After having 3-4 boys in a row, thinking the next kid will be a girl is a Monte Carlo fallacy.
Not exactly. It's not like gambling. It's the father's sperm. If he's likely to produce a male 90% of the time, he will produce a male almost always. But not necessarily.
She should've done a little research. It's the man's sperm that determines the gender. So the fact that girls run in mom's family doesn't mean anything.
I learned this when someone pointed out that King Henry VIII blaming his wives for not giving him a male heir was unfair, since HE was the problem.
Well, I know that, but my mother-in-law was raised in a small town in Brazil in the 1940s and didn't get the greatest education, then moved to the US and had to learn another language right as she was getting married and having babies. So I cut her some slack.
The whole thing is kind of like "We might have twins, they run in my husband's family," as though that would have anything to do with the wife having twins.
Well, I'll say this: She'll have no shortage of older brothers to meet her first boyfriend and give him that "warning" on their first date.
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