Y Chromosome Is More Compared To a Sex Switch. The little, stumpy Y chromosome—possessed by male mammals yet not females, and sometimes shrugged down as doing bit more than determining the intercourse of the developing fetus—may effect peoples biology in a large method. Two separate research reports have determined that the intercourse chromosome, which shrank scores of years back, keeps the number of genes so it doesn’t by possibility, but because they’re key to your success. (mais…)