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单词 pseudoreduction
释义

> as lemmas

pseudoreduction
pseudoreduction n.
Brit. /ˌs(j)uːdə(ʊ)rᵻˈdʌkʃn/
,
U.S. /ˌsudoʊrəˈdəkʃ(ə)n/
,
/ˌsudoʊriˈdəkʃ(ə)n/
Cell Biology (now rare) the apparent halving of the chromosome number as a result of the pairing of homologous chromosomes at synapsis.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > [noun] > stages of mitosis or meiosis > reduction
reduction1891
reduction division1891
pseudoreduction1899
postreduction1905
prereduction1905
1899 Jrnl. Morphol. 15 Suppl. 71 It may be stated..in regard to the number of chromosomes, that it is plainly greater than in the first spermatocyte division, which is known to be post-synaptic, i.e., after the pseudo~reduction.
1954 Amer. Midland Naturalist 51 178 Pseudoreduction by parasynapsis takes place in the primary spermatocytes while the chromatin material is in the prophase.
extracted from pseudo-comb. form
<
as lemmas
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更新时间:2024/12/23 9:11:43