There is no cause for concern, according to US experts. They compared the process of gradual mutation of male chromosomes and chromosomes distant relatives of modern man - male rhesus monkeys (whose ancestors split off from ours about 25 million years ago). "Significant differences between them," - said the scientists refuting the opinion of his colleagues claimed that the Y-chromosome of men of the 21st century has undergone significant changes, and could soon disappear forever.
Y-chromosome - A set of genes responsible for the sex of the person (it contains the gene SRY, which determines male sex, the body, as well as genes necessary for normal sperm formation). In men, this one chromosome. In women, it is not at all, but there are two X chromosomes.
Y-chromosome first deciphered in 2003 under the direction of Professor David Page. His employees found out that its history goes back 200 to 300 million years. During this time it has undergone great changes, lost almost the entire set of genes of which was initially (in 1400 instead of the genes in the Y-chromosome today only 45).
Based on data analysis, scientists have sounded the alarm. They started talking about the fact that men will soon become extinct as a species. Even more in this assumption, they were persuaded to results of a study in which a group led by Page's compared the process of mutation of human Y-chromosome chromosomes and male chimpanzees are considered the closest relatives of the person (the ancestors of these animals were separated from men "only" 6 million years ago). Against the background of a sufficiently large set of genes of monkeys, the animals are able to maintain virtually unchanged for centuries, the number of human genes the scientists thought negligible.
But after analyzing the chromosomes of man and his wider family, a group of scientists, led by Hyuiz, found that "not all that bad, and there is no reason to panic."
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