| 单词 | polytenize | 
| 释义 | polytenizev. Cell Biology.  1.  intransitive. To undergo polytenization. ΚΠ 1973    Proc. National Acad. Sci. U.S.A. 70 1362/1  				In the male there is only one X chromosome, and when this polytenizes it possesses only half the number of strands present in each of the synapsed autosome pairs. 1990    Chromosoma 99 24  				This element mainly consists of constitutive heterochromatin which does not polytenize.  2.  transitive. To subject to polytenization; to make polytene. ΚΠ 1985    Jrnl. Cell Biol. 101 79  				The micronuclear chromosomes are polytenized during the first 20 h of macronuclear development. 1989    Proc. National Acad. Sci. U.S.A. 86 3256/1  				Two organisms with different morphological characteristics have been shown to possess small linear DNA molecules in their macronuclei, and at least one of these polytenizes its chromosomes during macronuclear development. This is a new entry (OED Third Edition, September 2006; most recently modified version published online March 2022). < | 
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