Electrophoresisa technique for the separation of charged molecules by migration on a support medium under the influence of an electrical charge.
ElectroporationA method for transforrning DNA, especially useful for plant cells, in which high voltage pulses of electricity are used to open pores in cell membranes…
Ellis - van Creveld syndromeA rare autosomal recessive disorder that leads to dwarfism, extra fingers, and malformations of the heart, among other abnormalities. See also malformation
Embryonic stem (ES) cellsCell lines derived from early embryos that have the potential to differentiate into all types of somatic cells as well as to form germ line cells, and…
enzymeA protein that speeds up chemical reactions in the body.
EpistasisInteraction between genes at different loci, e.g. one gene suppresses the effect of another gene that is situated at a different locus.
Escherichia coliA commensal bacterium inhabiting the human colon that is widely used in biology, both as a simple model of cell biochemical function and as a host for…
EugenicsThe application of the principles of genetics to the 'improvement' of humankind. Wholly discredited as a scientific approach since the Nazi period.
EukaryoteAn organism whose cells possess a nucleus and other membrane-bound vesicles, including all members of the protist, fungi, plant and animal kingdoms; and…
Exogenous DNADNA that has been derived from one organism, and is to be introduced into a cell a different species. Also referred to as foreign DNA or heterologous DNA.
ExonA DNA sequence that is ultimately translated into protein. See DNA.
Expressed sequence tag (EST)A short strand of DNA that is a part of a cDNA molecule and can act as identifier of a gene. Used in locating and mapping genes.