同源染色体
减数分裂
配对
生物
遗传学
染色体
同源重组
倍性
染色体分离
细胞分裂
突触
DNA
细胞
基因
超导电性
物理
量子力学
作者
Yuqi Tian,Libo Liu,Jinmin Gao,Ruoxi Wang
摘要
Abstract Meiosis is a specialized cell division that occurs in sexually reproducing organisms, generating haploid gametes containing half the chromosome number through two rounds of cell division. Homologous chromosomes pair and prepare for their proper segregation in subsequent divisions. How homologous chromosomes recognize each other and achieve pairing is an important question. Early studies showed that in most organisms, homologous pairing relies on homologous recombination. However, pairing mechanisms differ across species. Evidence indicates that chromosomes are dynamic and move during early meiotic stages, facilitating pairing. Recent studies in various model organisms suggest conserved mechanisms and key regulators of homologous chromosome pairing. This review summarizes these findings and compare similarities and differences in homologous chromosome pairing mechanisms across species.
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