| A | B |
|---|
| Human genetics | study of inheritance as it occurs in humans |
| Genes | unit of heredity of a living organism |
| Chromosomes | organized structures of DNA and protein found in cells; contain many genes |
| Human Genome | complete set of human genetic information, stored as DNA sequences within the chromosomes |
| Anomaly | abnormally inherited gene |
| Prenatal Development | period of development from conception to birth |
| Ovulation | ejection of a mature egg from the ovary |
| Ovum | mature egg |
| Fertilization | point in which the sperm penetrates the egg |
| Implantation | point in which the egg attaches to the uterus |
| Zona Pellucida | extra-cellular membrane, comprised of glycoproteins, between the corona radiata and the interior of the ovum |
| Amphimixis | fusion of the male and female pronuclei |
| Zygote | fertilized egg |
| Cleavage | division of cells in the early embryo |
| Primitive Streak | thickened line formed when cells of the ectoderm migrate toward the center and the caudal end of the embryonic disk |
| Cephalic | relating to the head or near the region of the head |
| Evaginations | outpocketings or protrusions which develop into other structures or organs of the body |
| Celom | body cavities |
| Parturition | process by which a baby is born |
| Labor | period during which the contractions occur which results in the expulsion of the fetus from the uterus |
