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E

E. coli
Escherichia coli, a bacterium found in the intestine. [More] [genome]
Ear, human
Ecdysone
Ecdysozoans
Echinoderms
Ecology
Study of the interrelationships of organisms and their environment.
Ecosystem
A community of organisms interacting with each other and with their nonliving surroundings.
Ectoderm
Edema
Effector
Body structure by which an organism acts. In humans the chief effectors are the muscles and glands.
Egestion
Elimination of undigested materials from the alimentary canal. [More]
Ehlers-Danlos syndrome
Electron
Electronegative
Having an affinity for electrons. [More]
Electrophoresis
Element
Embryo
An animal or plant in an early stage of development from a zygote.
Embryonic stem (ES) cell
[making transgenic mice] [human]
Emphysema
Emulsion
Mixture consisting of droplets of one liquid suspended in a second.
Enantiomer
End plate potential (EPP)
[More]
Endocrine
Refers to hormones. [Discussion of human hormones] [table of human hormones] [insect hormones]
Endocytosis
[by B lymphocytes]
Endoderm
Endodermis
Endoplasmic reticulum (ER)
Endoreplication
Endosperm
Endostatin
Endosymbiosis
[and the origin of mitochondria and chloroplasts] [ secondary endosymbiosis ]
Endotherm
An animal that maintains its body temperature with heat generated by its metabolism.
Energy
Capacity for doing work. [free energy]
Enhancer
Region of DNA that stimulates the initiation of the transcription of a gene. Enhancers differ from promoters in being farther away from, and either upstream (5') or downstream (3') of, the gene they influence. [Discussion]
Enkephalins.
[More] [view enkephalin synapse]
Enzymes
[ Enzyme Kinetics ]
Eotaxin
Epicotyl
That portion of the shoot of a plant embryo or seedling above the node at which the cotyledons are attached. [View]
Epidemiology
Epiphyte
Epithelia
Epitope
A part of an antigen to which an antibody binds. Also called the antigenic determinant.
Epstein-Barr virus (EBV)
[genome][and apoptosis] [how it evades cell-mediated immunity]
Equilibrium
State of balance between opposing actions. [sense of equilibrium in humans]
Erythrocyte
red blood cell
Erythropoietin (EPO)
[the hormone] [and somatic gene therapy]
Escherichia coli
[genome]
Estrogen
Ethylene
Plant hormone.
Etiolation
Eubacteria
Eugenics
The application of genetics in an attempt to "improve" the hereditary qualities of humans.
Euglenozoa
Eukaryote
An organism whose cells contain a membrane-bound nucleus. Sometimes spelled eucaryote.
Euryarchaeota
Eustachian tube
Eutheria
placental mammals
Eutrophication
The process in which a body of water becomes enriched in dissolved nutrients.
even-skipped (eve)
[role in Drosophila embryo]
Evolution
[and adaptation] [and speciation] [convergent]
Excitatory postsynaptic potential (EPSP)
Excretion
Elimination of metabolic wastes by an organism. [in humans]
Exocrine
Refers to glands that deposit their secretion(s) into ducts that drain to the "exterior". Examples: salivary, sweat, and gastric glands [View topology]. Compare endocrine
Exocytosis
Exon
Portion of a gene that is retained in the messenger RNA (mRNA) molecule.Adjacent exons are separated from each other by introns. Often exons encode one domain of a protein. The ability to shuffle exons in different combinations may - over the course of evolution - have speeded up the creation of new genes with new functions. [More]
Extensor
A muscle that extends a limb. [Example]
Extracellular fluid (ECF)
The fluid that bathes cells.
Extraembryonic membranes
Extrinsic allergic alveolitis
Eye
[of humans[ [of insects]
eyeless (ey)
Drosophila gene
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