Chromosome irregularities can be numerical or basic. A numerical irregularity mean an individual is either missing one of the chromosomes from a couple or has multiple chromosomes rather than a couple. An auxiliary variation from the norm implies the chromosome's structure has been changed in one of a few different ways. Chromosomes are the structures that hold qualities. Qualities are the individual directions that advise our bodies how to create and work; they oversee physical and clinical attributes, for example, hair shading, blood classification and defenselessness to malady. Numerous chromosomes have two fragments, called "arms," isolated by a squeezed district known as the centromere. The shorter arm is known as the "p" arm. The more extended arm is known as the "q" arm. The body is comprised of individual units called cells. Your body has a wide range of sorts of cells, for example, skin cells, liver cells and platelets. In the focal point of most cells is a structure called the core . This is the place chromosomes are found. The average number of chromosomes in a human cell is 46: 23 sets, holding an expected aggregate of 20,000 to 25,000 qualities. One lot of 23 chromosomes is acquired from the organic mother (from the egg), and the other set is acquired from the natural dad (from the sperm). Of the 23 sets of chromosomes, the initial 22 sets are classified "autosomes." The last pair is known as the "sex chromosomes." Sex chromosomes decide a person's sex: females have two X chromosomes (XX), and guys have a X and a Y chromosome (XY). The mother and father each contribute one lot of 22 autosomes and one sex chromosome.