These are referred to as X-linked genes. Female abnormalities result in Turner syndrome or Trisomy X, according to the U. Because the additional genes in the X chromosome have no counterpart in the Y chromosome, the X genes are dominant. Nine are involved in sperm production, and if some are missing or defective, low sperm counts or infertility may occur. Recent research has found that a person can have a variety of different combinations of sex chromosomes and genes, particularly those who identify as LGBT. The sperm are the variable factor in determining the sex of the baby.
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