Meiosis is a feature of sexual reproduction that results in the independent assortment of genetic material from two individuals, providing greater genetic diversity. The initiation of meiosis requires both intrinsic and extrinsic signals. Meiosis is characterized by one round of DNA replication followed ...
Meiosis is a key step in sexual reproduction.. It is required for the production of gametes, consequently fertility, and generates diversity by scrambling parental genotypes. Thus, it is central to plant genome evolution The last ten years have provided a huge step forward in our understanding of...
As with mitosis, before meiosis begins, the DNA in the original cell is replicated during S-phase of the cell cycle. Two cell divisions separate the replicated chromosomes into four haploid gametes or spores. Meiosis is essential for sexual reproduction and therefore occurs in all eukaryotes (...
[Inverted meiosis and its place in the evolution of sexual reproduction pathways] Inverted meiosis is observed in plants (Cyperaceae and Juncaceae) and insects (Coccoidea, Aphididae) with holocentric chromosomes, the centromeres of which... FB Yu - 《Genetika》 被引量: 0发表: 2018年 RNA ...
Meiosis is a germ-cell-specific cell division process through which haploid gametes are produced for sexual reproduction. Before the initiation of meiosis, mouse primordial germ cells undergo a series of epigenetic reprogramming steps, including the global erasure of DNA methylation at the 5-position ...
Meiosis is a special type of cell division specific to germ cells, whereby diploid germ cells produce haploid gametes for sexual reproduction. At the beginning of meiosis, chromosomes need to pair with their homologous partner and initia... T Rubin,N Christophorou,J Huynh - 《Cell Cycle》 被...
Wai-sum, O,TG Baker - 《Journal of Reproduction & Fertility》 被引量: 73发表: 1976年 The meiosis inducing interaction between germ cells and rete cells in the fetal mouse gonad During the period of the sexual differentiation of the gonads of the mouse the rete system of the 2 sexes secre...
One of the greatest puzzles in evolutionary biology is the high frequency of sexual reproduction and recombination. Given that individuals surviving to reproductive age have genomes that function in their current environment, why should they risk shuffling their genes with those of another individual?
Germ cell sex determination is directed by the gonad and is characterized by a difference in the timing of entry into meiosis. Recent data show that retinoic acid signalling is responsible for the induction of germ cell meiosis in the developing ovary. In the fetal testis, this process is inhi...
Meiotic homologous recombination is pivotal to sexual reproduction. DMC1, a conserved recombinase, is involved in directing single-end invasion between interhomologs during meiotic recombination. In this study, we identified OsDMC1A and OsDMC1B, two closely related proteins in rice (Oryza sativa) wi...