asynapsisn.
/eɪsɪˈnapsɪs//asɪˈnapsɪs/ Biology.
Absence of synapsis; failure of chromosomes to pair in meiosis.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > [noun] > other processes in mitosis or meiosis
zonation1899
diakinesis1902
parasynapsis1909
syndesis1909
parasyndesis1911
non-disjunction1913
non-conjunction1925
asynapsis1930
stathmokinesis1938
misdivision1939
metakinesis1948
tandem duplication1959
1930 G. W. Beadle in Cornell Univ. Agr. Exp. Sta. Mem. CXXIX. (title) Genetical and Cytological Studies of Mendelian Asynapsis in Zea mays.
Derivatives
asyˈnaptic adj.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > [adjective] > other processes in mitosis or meiosis
parasynaptic1910
non-disjunctional1913
asynaptic1937
stathmokinetic1939
1937 C. D. Darlington Rec. Adv. in Cytol. (ed. 2) vii. 291 In ‘asynaptic’ maize which has as a rule no pairing of chromosomes at meiosis, the progeny nevertheless show the results of normal crossing-over.
1949 C. D. Darlington & K. Mather Elements of Genetics v. 110 A so-called asynaptic gene often..produces a general reduction in the crossing-over of all the chromosome pairs when homozygous.
This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2018).
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n.1930