Meiosis is the generation of germ cells (eggs and sperm). In meiosis, DNA replication is followed by two division cycles: meiosis I, which segregates homologous chromosomes and meiosis II, which segregates sister chromatids. Thus, four daughter cells are generated that each contains one homologue...
1 round ofDNA replicationDNA replicationThe entire DNA of a cell is replicated during the S (synthesis) phase of the cell cycle. The principle of replication is based on complementary nucleotide base pairing: adenine forms hydrogen bonds with thymine (or uracil in RNA) and guanine forms hydrogen...
Finally, the complex chromosome behavior of meiosis is a genetically tractable paradigm, the study of which improves our understanding of many fundamental cellular processes including DNA repair, genome stability, cancer etiology, chromatin structure, and chromosome dynamics....
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 specialized type of cell division in which two rounds of chromosome segregation follow a single round of DNA replication. In diploid organisms, meiosis generates gametes with a haploid number of chromosomes. Both general cell-cycle regulators and meiosis-specific proteins bring about this...
The replication of DNA, The segregation of the original and the replica, CytokinesisBinary Fission Binary fission is the type of cell division that takes place in prokaryotes (bacteria and archaea). Genetic material (nucleoid) in these cells is arranged in a single circular chromosome of the ...
After the replication of DNA, the pairing of the homologous chromosomes does not only allow for the segregation of meiotic chromosomes but also contributes to the recombination of maternal and paternal chromosomes. This pairing of chromosomes occurs during the prophase of meiosis I. ...
comprising of two successive nuclear divisions with only one turn ofDNA replication, one parent cell produces four daughter cells that have half the number of chromosomes found in the original parent cell. Due to cross-over events and recombination, the genetic content of all descendants is not ...
DNA replication does not occur during prophase II; each chromosome still consists of the two sister chromatids. Nor are there opportunities for pairing or recombination at this stage due to the prior separation of homologs at anaphase I. The start of anaphase II is signaled by the separation ...
Suppression of DNA replication via Mos function during meiotic divisions in Xenopus oocytes. Here we show that development of the DNA-replicating ability depends on new protein synthesis during meiosis I, and that mere ablation of the endogenous ... N Furuno,M Nishizawa,K Okazaki,... - 《Embo...