trisomen.
/ˈtrʌɪsəʊm/ Cytology.
A chromosome which is represented three times in a chromosomal complement; also, a trisomic individual.
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the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > types of chromosome
chromoplastid1885
accessory chromosome1899
chromoplast1902
X1902
heterochromosome1904
idiochromosome1905
macrochromosome1905
allosome1906
autosome1906
monosome1906
sex chromosome1906
supernumerary1907
X chromosome1911
Y chromosome1911
univalent1912
euchromosome1914
W1917
monosome1921
tetrasome1921
trisome1921
heterosome1938
isochromosome1939
trisomic1939
metacentric1945
acrocentric1949
polycentric1953
Philadelphia chromosome1961
monocentric1979
1921 A. F. Blakeslee in Amer. Naturalist 55 259 The homologous chromosomes therefore form tetrasomes, to use a new term, instead of disomes as in normals or trisomes as in triploid plants.
1926 L. W. Sharp Introd. Cytol. (ed. 2) xvii. 388 Such 2n + 1 forms are called ‘simple trisomic’ mutants; they have 11 disomes (normal pairs) and one trisome.
1944 Genetics 29 232 16 monosomes and five trisomes were found in the 11 aberrant offspring.
1979 Nature 27 Sept. 280/2 The failure to form trisomes indicates..that on intact RNA3 stable ribosome binding does not occur simultaneously at both the site near base 29 and the site near base 70.
This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2018).
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n.1921