Medical term:
disjunction
disjunction
[dis-junk´shun]the act or state of being disjoined. In genetics, the moving apart of bivalent chromosomes at the first anaphase of meiosis.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
dis·junc·tion
(dis-jŭnk'shŭn),The normal separation of pairs of chromosomes at the anaphase stage of meiosis I or II.
[dis- + L. junctio, a joining, fr. jungo, pp. junctum, to join]
Farlex Partner Medical Dictionary © Farlex 2012
disjunction
(dĭs-jŭngk′shən)n.
1. The act of disjoining or the condition of being disjointed.
2. Logic
a. See exclusive disjunction.
b. See inclusive disjunction.
3. Genetics The separation of homologous chromosomes during meiosis.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
dis·junc·tion
(dis-jŭngk'shŭn)The normal separation of pairs of chromosomes at the anaphase stage of meiosis I or II.
The normal separation of pairs of chromosomes at the anaphase stage of meiosis I or II.
[dis- + L. junctio, a joining, fr. jungo, pp. junctum, to join]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
disjunction
The separation movement of members of pairs of chromosomes to opposite poles of a cell in the process of cell division.Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
disjunction
the separation of HOMOLOGOUS CHROMOSOMES to opposite poles during anaphase of nuclear division, particularly MEIOSIS. Abnormalities in disjunction (see NONDISJUNCTION can lead to a chromosomal mutation in which daughter cells possess too many or too few chromosomes. In humans extra AUTOSOMES can result in severely abnormal individuals (see DOWN'S SYNDROME, PATAU SYNDROME, EDWARDS'SYNDROME). See also TURNER'S SYNDROME and KLINEFELTER'S SYNDROME for disjunction abnormalities affecting the SEX CHROMOSOMES.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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