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For many families with only daughters, this statistical probability is the primary explanation Mr gellatly further explained, the gene that is passed on from both parents, which causes some men to have more sons and some to have more daughters, may explain why we see the number of men. The third combination, known as ff, [causes men to] produce more x sperm and have more daughters. according to dr

Langdon, the gene that is passed on from both parents, which causes some men to have more sons and some to have more daughters, may explain why we see the number of men and women roughly balanced in a population. What doesn't seem to influence a baby's sex some folk tales say that attractive parents are more likely to have daughters, while tall, wealthy, or aggressive parents may produce more sons. A deeper understanding of who we are science often begins with simple questions—why does one family have all boys

Why do some never have a daughter

The answers, as they unfold, reveal not just statistics, but the intricate workings of life itself. A study of hundreds of years of family trees suggests a man's genes play a role in him having sons or daughters Men inherit a tendency to have more sons or more daughters from their parents It's all in the father's genes, according to scientists at newcastle university in england

They say a still undiscovered gene causes some men to father mostly sons, while others father mostly girls. But what about families who keep having sons, or those who produce only daughters Parents often joke about running out of luck, but scientists have long wondered if it's really chance at. I read that y chromosome is more fragile, and men under physical or mental stress are more likely to have girls due to biochemical/oxidative stress on y chromosome sperm

Maybe that's why so many of the u.s

Presidents seem to have more daughters I also read that for the same reason xx chromosome sperm survive longer. But still, we've all heard stories from our grandparents about the reasons why a man only has daughters.

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