Such disruption of apoptosis may be associated with an inherited genetic mutation or a somatic cell genetic mutation . A process whereby semen is placed within a female's uterus by artificial means i.e. other than sexual intercourse. This process is usually accomplished by placing the semen in a syringe and then using the syringe to deposit the semen at the mouth of the uterus. Sperm cells within the semen then travel to and fertilize waiting egg cells. This process is used to treat some forms of human infertility.
Artificial insemination is a common practice in the production of domestic livestock.
The scheme by which individuals are selected, identified, and recruited for participation in a research study. In human genetic linkage studies, association studies frequently involve the comparison of allele frequencies for a marker locus between a disease population and in a control population. A disease whereby an individual's immune system mounts an attack on a portion of its own tissues. Tissues undergoing such an attack can be destroyed in the process. Rheumatoid arthritis is an example of an autoimmune disease.