There are thought to be about 40,000 genes in a kind of genetic soup in the nucleus of each human cell.
Genes control everything and they all interact.
Some genes serve to inhibit, suppress, or repress the actions of other genes, some affect the rates of interactions, and other try to identify and repair genetic and metabolic errors. Before cells can divide, genes come together into 23 couples - chromosome pairs. If a pair of chromosomes do not separate cleanly then, after division, one cell will have too many chromosomes and the other will have too few . Amniocentesis is aimed mainly at detecting the family of disorders that come from having too many or two few chromosomes per cell. We require high resolution banding for AmnioNet, because it is possible to identify additional problems that occur when small segments of genetic material is deleted from its normal location or rearranged onto an alternate neighborhood where it may not function properly.