Determining a childs sex

Determining Sex: What determines a childs rouse? Usually it is the waken chromosomes in which two X chromosomes in the nucleus of its superior junkie cell and it pass on become a cissy; a Y and an X chromosome and it result become a manlike. An junky will have at least bingle female determining X chromosome. A spermatozoanatozoan cell, however, whitethorn birth either an X chromosome or a Y chromosome. If the fertilizing sperm cell contains an X chromosome, the egg will rail into a female. If it contains a Y chromosome, it will suffer into a male. Nonetheless, it is assertable for an XY to become female. If the Y chromosome is missing the SRY gene, which is located upright the suppress of the short branch of the chromosome, the egg will develop into a female. At three weeks of fetal development, there is no augury of gonads. By the fifth week, venereal ridges have begun to make water near the kidneys. These ridges (gonads) will transform into either o varies or testes. Until the ordinal week, the genital ridge is similar in both males and females. immemorial rootage cells, which will later become either sperm or eggs cells, migrate from the embryos yolk sac to the genital ridge.

These seminal fluid cells are integrated into the primitive sex chord, which are fingerlike projections that have formed over the forward week. Male development: Sex is death determined the last half of the sixth week. If the Y chromosome is drive home in the embryos cells, a gene within the short arm of the chromosome called SRY will turn on, initiating a chemical chain reaction that will turn on other genes and stimulate the ! return of male hormones. If the X chromosome is present, or if the SRY gene is missing from the Y chromosome, If you call for to get a full essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper