Chromosomal Defects (Defects in the Genetic Makeup)
What are chromosomes? Every human being has 46 chromosomes in each body cell, on which all hereditary information is stored. Two of them, X and Y, are the sex chromosomes. These 46 chromosomes consist of 23 pairs of chromosomes. The sex chromosome in girls is designated 46XX because it has two X chromosomes. Boys have … Chromosomal Defects (Defects in the Genetic Makeup)