Change:  Most genetic diseases are, of course, not linked to the X-chromosome. For a good resource on genetic diseases check out this wiki site (which was made by a class of 8th graders!).Somatic cells are diploid, wheras sex cells are haploid.   View changes from previous version. (Word count: 1656)

Change: hormones (testosterone and estrogen). The human male reproductive system Cross-sectional diagram of the female reproductive organs.In short, this is a known list of sex organs that evolve from the same tissue in a human life. The differences between the female and male   View changes from previous version. (Word count: 1623)

Change: Sperm production takes place in the spermiferous tubules. Complete development of sperm is in the epididymus. Seminal vesicles provide a buffer for the acidic environment   View changes from previous version. (Word count: 1600)

Change: Somatic cells are diploid, wheras sex cells are haploid. Birds do not have a penis. What determines sexual phenotype? The default for embryonic development is female development.Testosterone: is secreted by the interstitial Leydig cells under stimulation by LHLH: receptor proteins are located in the interstitial tissue. FSH:   View changes from previous version. (Word count: 1313)

Change: menstratemenstruate and are always sterile. XXY (also known as Klenfelter’s syndrome): affects 1 or 2 out of every 1000 males. Symptoms vary and many have no detectable signs, but generally sterile. XO (also known as Turner’s syndrome): 1 in 2000 female babies are born with this monosomy   View changes from previous version. (Word count: 930)

Change: CHROMOSONESCHROMOSOMESThere are 23 pairs of chromosones46 in every cell22 match identically in maleX--1,098 genesY--80 genes and is smaller than XThere are 168 known diseases that are X linked.Testosterone: is secreted by the interstitial Leydig cells under stimulation by LHLH: receptor   View changes from previous version. (Word count: 929)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 929)

Change: in women b. antisperm antibodies c. an overproduction of LH d. leaking of milk from her mammary glandse. problems becoming pregnant15. An embryo with the genotype XX develops female accessory sex organs because of?a. androgensb. estrogensc. lack of androgensd. lack of estrogens   View changes from previous version. (Word count: 898)

Change:  sex organs because of?a. androgensb. estrogensc. lack of androgensd. lack of estrogens16. The contents of the birth control pilla.inhibit secretion of gonadotropinsb. exert negative feedback on the hypothalamusc. prevent ovulationd. maintain the endometriume. all of these   View changes from previous version. (Word count: 735)

Change: youhey canwill produce anti-sperm antibodies.Questions1. Which male organ is homologous to a womans ovary?a. glans of penisb. bulbourethral glandsc. testesd. scrotum2. Which of these structures release testosterone into the male reproductive system?a. Cells of Leydigb. Androgenous cellsc.   View changes from previous version. (Word count: 810)