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[pak-i-teen] /ˈpæk ɪ tin/
noun, Cell Biology.
the third stage of prophase in meiosis, during which each chromosome pair separates into sister chromatids with some breakage and crossing over of genes.
Also, pachynema
[pak-uh-nee-muh] /ˌpæk əˈni mə/ (Show IPA)
Origin of pachytene
< French pachytène (1900), equivalent to Greek pachý(s) thick + -tène -tene Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for pachynema


the third stage of the prophase of meiosis during which the chromosomes become shorter and thicker and divide into chromatids
Word Origin
from Greek pakhus thick + tainia band
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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pachynema in Medicine

pachytene pach·y·tene (pāk'ĭ-tēn')
The third stage of the prophase of meiosis during which the homologous chromosomes become short and thick and divide into four distinct chromatids.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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