Some of the possible treatments listed in sources for treatment of Stuttering may include: 1  Speech therapy. 2  Watchful waiting - many childhood cases disappear though some remain. 3  Treatment of an underlying problem. 4  Betaxolol. 5  Betoptic. 6  Betoptic-Pilo. 7  Betoptic-S. 8  more treatments...Â».
Sex Chromosomes. Sex chromosomes are particular chromosomes that are involved in determining the sex of an organism. In the cells of humans and many other organisms the sex chromosomes consist of a pair of chromosomes called the X and Y chromosomes. The X and Y chromosomes were first discovered in beetles by Nettie Stevens in 1906.
Home Â» Tutorials Â» Genetics and Evolution Â» Chromosomes X and Y and Sex Determination. In a human, the normal chromosomes complement is 46, 44 of which are autosomes while 2 distinct chromosomes are deemed sex chromosomes, which determine the sex of an organism and various sex linked characteristics.