ectopic pregnancy - implantation of the embryo in the oviduct or other site outside the uterus typically caused by failure of zona pellucida to keep blastocyst from adhering to oviduct walls; ...
Ectopic
Occurring in an abnormal position or in an unusual manner or form, e.g. ectopic recombination.
Related Terms:
Recombination
The process by which progeny derive a combination of linked genes different from that of either parent.
ectopic Infection in a location other than normal or expected.
ectoplasm The cortex of a cell or that part of cytoplasm just under the cell surface; contrasts with endoplasm.
Overexpression / Ectopic expression
overexpression of Smo is not sufficient to activate the pathway, casting doubt on the proposed stoichiometric relationship between Ptc and Smo (Alcedo. 2000; Denef, 2000; Ingham, 2000).
"Induction of ectopic eyes by targeted expression of the eyeless gene in Drosophila". Science 267 (pp. 1788-1792).
^ Tomarev, S.I., Callaerts, P., Kos, L., Zinovieva, R., Halder, G., Gehring, W., and Piatigorsky, J. (1997).
Gehring's lab did the same ectopic expression experiment but with the mammalian homologue of eyeless. They produced flies with eyes on their antennae, legs, wings, and various other places.
of the ovum is believed (page 44) to occur in the tube, and the fertilized ovum is then normally passed on into the uterus; the ovum, however, may adhere to and undergo development in the uterine tube, giving rise to the commonest variety of ectopic ...
Sexually transmitted diseases may cause serious complications including pelvic inflammatory diseases, ectopic pregnancy, infertility, chronic pelvic pain, cancer, and death. An infected mother may also affect the health of her offspring.
Evidence that UBF underpins NOR structure is provided by an examination of cell lines in which large arrays of a heterologous UBF binding sequences are integrated at ectopic sites on human chromosomes.
Any process that narrows the tube and thus decrease the caliber of the passage way can increase the chance of an ectopic pregnancy.
 See also: Human, Organ, Trans, Tissue, Cells
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