polytenyn.
/ˈpɒlᵻtiːni/, U.S. /ˈpɑləˌtini/ Cell Biology.
The condition or state of being polytene; the degree to which genetic material is polytene.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > types of chromosome > condition
trisomy1930
monosomy1931
polyteny1942
tetrasomy1961
nullisomy1966
1942 Proc. Royal Soc. Edinb. B. 61 318 The degree of polyteny found in the tissues of a dipteran larva varies with the species.
1958 C. P. Swanson Cytol. & Cytogenetics ix. 300 This gradual change, if caught before the completion of the entire process of doubling, will give both tissues of mixed ploidy and cells with an uneven degree of polyteny.
1989 B. Alberts et al. Molecular Biol. Cell (ed. 2) ix. 509 Polyteny has been most studied in the salivary glands of Drosophila larvae.
2001 Proc. National Acad. Sci. U.S.A. 98 570/1 The level of polyteny of the Drosophila salivary gland chromosomes was determined.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
<
n.1942