Due to non-disjunction of chromosome during spermatogenesis, some sperms carry both sex chromosomes (22A + XY) and some sperms do not carry any sex chromosome (22A+O). If these sperm fertile with normal egg (22A + X), what type of genetic disorder appear among the offsprings?
The correct option is 3: Kleinfelter's syndrome and Turner's syndrome The phenomenon described, the failure of homologous chromosomes or sister chromatids to separate during meiosis, is called non-disjunction. In the male germ line (spermatogenesis), the question describes a situation where non-disjunction of the sex chromosomes (XY) occurs. This meiotic error results in the formation of two types of abnormal sperm: one carrying both sex chromosomes (22A + XY, where 22A…Read More