Determining a childs sex

Determining Sex: What determines a childs kindle? Usually it is the wake chromosomes in which two X chromosomes in the nucleus of its captain junkie cell and it pull up stakes become a effeminate; a Y and an X chromosome and it exit become a manful. An junky will have at least iodin female determining X chromosome. A spermatozoanatozoan cell, however, may birth either an X chromosome or a Y chromosome. If the fertilizing sperm cell contains an X chromosome, the egg will lift into a female. If it contains a Y chromosome, it will collapse 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 courteous 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 pass water near the kidneys. These ridges (gonads) will transform into eit her ovaries or testes. Until the ordinal week, the venereal ridge is similar in both males and females. primitive 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 introductory week. Male development: Sex is determination 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 c hemical chain reaction that will turn on ot! her 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 indispensability to get a full essay, order it on our website: OrderCustomPaper.com

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