For the first time, animal experiments have separated "male and female sperm"

BEIJING, Aug.
(Xinhua) -- Japanese scientists have discovered an X chromosome protein in the sperm of mice carrying the X chromosome and isolated it from reproductive cells carrying the Y chromosome, using the technology to create a nest of mice made up mainly of one sex, according to Newsweek. They say the latest research could have a huge impact on the gender selection of animals, including humans, in the future.
carry X or Y chromosomes, different chromosomes determine the sex of most mammalian offspring. In general, the number of sperm carrying the X chromosome and the Y chromosome that swims in semen is equal, so the number of human men and women is similar.
but there are no known tags to distinguish between the two. For years, scientists have tried unsuccessfully to distinguish between these reproductive cells in different species because it would help in choosing the sex of animals and humans.
now, a team led by Hiroshima University professor Masoshi Ueda has done just that. "In dairy farms, the value of cows is much higher than that of male cows, because milk is produced only by cows, and in beef production, bulls are worth more than cows, so it is important to be able to choose gender, " says Mr Yoshida. Peter
Ellis, lecturer in molecular genetics and reproduction at the University of Kent in the UK, said: "If this study can be replicated, especially if it is established in species other than rats, then it will have a huge impact on artificial insemination/assisted reproduction in both animals and humans. David elliott
professor of genetics at the University of Newcastle in the UK, said: "This study gives us a broader understanding of sperm formation. If human sperm carrying the X chromosome and the Y chromosome are similarly different, then theoretically they can be separated in a similar way. However, sperm-on-sperm subjects are often different between species, so the latest methods may not be useful and ethical and safety issues need to be considered before they can be applied to humans. ”