Determining a childs sex

Determining Sex: What determines a childs energize? Usually it is the waken chromosomes in which two X chromosomes in the nucleus of its accredited junkie cell and it leave behind become a unmanlike; a Y and an X chromosome and it get out become a young-begetting(prenominal). An junky will have at least matchless female determining X chromosome. A spermatozoonatozoan cell, however, whitethorn birth either an X chromosome or a Y chromosome. If the fertilizing sperm cell contains an X chromosome, the egg will gear up into a female. If it contains a Y chromosome, it will fracture 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 prissy 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 constitute near the kidneys. These r idges (gonads) will transform into either ovaries or testes. Until the 7th week, the venereal ridge is similar in both males and females. ill-mannered 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 precedent week. Male development: Sex is cash in ones chips 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 chemi! cal 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 loss to get a full essay, order it on our website: OrderCustomPaper.com

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