Manufacture, alteration or repair of genetic material by synthetic means. An identifiable substance that is associated with a normal or an abnormal gene. The branch of biology that deals with heredity. Excessive proliferation of gum tissue. An organ that produces a hormone or other secretion.
Glands are groups of cells that make substances enabling body functions.
Secreting glands manufacture and release chemical substances such as hormones and enzymes. Lymph nodes play an important part in fighting infections. A disorder in the eye characterized by high pressure inside the eyeball. A category of blood proteins. A sticky substance found in wheat flour, indigestible by some people.