chiasma(redirected from chiasma syndrome)
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Related to chiasma syndrome: Wilbrand's knee
chiasma (kīăzˈmə): see crossing over.
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A cross-shaped point of intersection of two parts, especially of the optic nerves.
(cell and molecular biology)
The point of junction and fusion between paired chromatids or chromosomes, first seen during diplotene of meiosis.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.