She has been invited to speak in many countries and is a member of various provincial, national and international scientific organizations. The Science Cytogenetics is the study of chromosomes in cells. It concentrates on the behaviour and identification of chromosomes. Banding Our 23 pairs of chromosomes have tens of thousands of genes that carry the information needed to create a unique person. For each pair, one comes from your Dad, the other from your Mom.
Geneticists use the bands to match the pairs.
You can tell by Jodi's two X chromosomes that she is a girl. Boys have one X and one Y chromosome. About 1 child in 700 is born with Down syndrome. It's caused by the accidental tripling of chromosome 21 during conception. Normally you have 23 pairs of chromosomes.