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Produces male or female sex sperm

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  • 09.04.2019
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A new chemical treatment that can segregate male and female sperm could one day mean parents going through IVF could choose whether they have a boy or girl. In experiments with mice sperm, scientists found they could produce litters that were 90 per cent male, according to the study published in Plos Biology. When the slower sperm were used, litters were 81 per cent female. The X chromosome has many genes while the shorter male Y chromosome has fewer, and this difference in gene expression meant scientists could distinguish between the two. The process — which could be simple and cheap to carry out — does not damage the DNA of sperm and could greatly simplify sex selection for IVF or artificial insemination, which is used in livestock, scientists say. Researchers say they have already used the method to selectively produce male and females in cattle and pigs, although they have not published research on this.
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Sperm separation method may allow sex selection in IVF

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Changing sperm speed can influence offspring’s sex, mouse study suggests | Science | AAAS

Unlike the female genitalia , the male reproductive organs are on both the interior and the exterior of the pelvic cavity. They include:. Sperm production occurs in the testicles. Upon reaching puberty , a man will produce millions of sperm cells every day, each measuring about 0.
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Sperm speed is associated with sex bias of siblings in a human population

Please refresh the page and retry. In mice sperm, when the fast swimmers were gathered and used in IVF, they produced litters that were 90 per cent male. Similarly, when the slower sperm was used, the litters were 81 per cent female. The team from Hiroshima University also told The Telegraph they had successfully used the technique in cattle and produced sex ratios of 90 per cent, although those experiments have not yet been published.
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Reproduction is the process by which organisms make more organisms like themselves. But even though the reproductive system is essential to keeping a species alive, unlike other body systems, it's not essential to keeping an individual alive. In the human reproductive process, two kinds of sex cells, or gametes GAH-meetz , are involved. The male gamete, or sperm, and the female gamete, the egg or ovum, meet in the female's reproductive system.
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