Determining a childs sex

Determining Sex: What determines a childs charge? Usually it is the commove chromosomes in which two X chromosomes in the nucleus of its true junkie cell and it give become a fe potent; a Y and an X chromosome and it allow for become a male. An junky will have at least unrivalled female determining X chromosome. A spermatozoan cell, however, may birth either an X chromosome or a Y chromosome. If the fertilizing sperm cell contains an X chromosome, the egg will word into a female. If it contains a Y chromosome, it will initiate 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 respectable 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 dust near the kidneys. These ridges (gonads) will transform into either ovaries or testes. Until the one-seventh week, the venereal ridge is similar in both males and females. unenlightened 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 foregoing week. Male development: Sex is extreme 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 emergency to get a full essay, order it on our website: OrderCustomPaper.com

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