WebThe 23rd pair of chromosomes are known as the sex chromosomes, because they decide if you will be born male or female. Females have two X chromosomes, while males have one X and one Y chromosome. WebSome boys will even have more than two X chromosomes (XXXY or XXXXY, for example), which increases the risk of severe symptoms and other health concerns. When a boy is born with the XXY condition in only some cells, it's called mosaic Klinefelter syndrome.

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WebIndividuals having two X chromosomes (XX) are female; individuals having one X chromosome and one Y chromosome (XY) are male. The X chromosome resembles a large autosomal chromosome with a long and a short arm. The Y chromosome has one long arm and a very short second arm. WebKlinefelter syndrome, in which males have an extra X chromosome, leading to a genotype of XXY. (In rarer cases, Klinefelter syndrome can involve several extra Xs, leading to an … svg for website logo

Turner syndrome - Symptoms and causes - Mayo Clinic

WebAug 30, 2016 · A human sperm contains either an X or a Y chromosome, thereby determining the sex of the offspring after fertilization. XX = female. XY = male. Dr. Page and his colleagues have spent the better part of the … WebEach cell in your body carries a pair of sex chromosomes, including your brain cells. Females have two X chromosomes, and males have one X and one Y. To explore sex differences in the human brain, a team led by … WebNov 13, 2024 · The three major types of cells in the blood are red blood cells, white blood cells, and platelets . Red blood cells determine blood type and are responsible for … skeleton hands forming a heart