If the male half of humanity disappears, then women will be able to continue the human race on their own through parthenogenetic reproduction. Leading Russian geneticists told Izvestia about this.
According to scientists, the male Y chromosome is a small piece of the female X chromosome, from which only 10% of the genes remained in the process of evolution.
Moreover, women, unlike men, can reproduce without fertilization.
“This is possible because they have a complete set of chromosomes. (In addition, men) lack reproductive structures for bearing a child,”explained a leading researcher at the Institute of General Genetics named after N. I. Vavilov Russian Academy of Sciences, Professor of Texas A&M University (USA) Konstantin Krutovsky.
So, if men for some reason disappear, women can hypothetically switch to parthenogenetic reproduction - that is, eggs will be used that did not undergo reduction division in meiosis during the formation of haploid gametes. Such an egg can develop into an exact copy of the mother. That is, only girls will be born.