WebbSynapsed, paired homologous chromosomes are termed bivalent —indicating two joined or synapsed chromosomes—or tetrad —representing the four separate chromatids in the bivalent structure. Importantly, bivalent chromosomes in pachytene undergo an exchange of chromatid material in a process called recombination or crossing-over. WebbHomologue pairs separate during a first round of cell division, called meiosis I. Sister chromatids separate during a second round, called meiosis II. Since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm).

Homologous pairing and the role of pairing centers in meiosis

WebbWhen comparing the duplicates with a third genome containing the gene, the pair of orthologs within the syntenic region is called a pair of positional homologs [28] (see Figure 2.4). small new zealand birds

Independent assortment means: (CHOOSE ONLY ONE) A. homologous…

WebbSolution Verified by Toppr Correct option is B) Synapsis is the pairing of two homologous chromosomes that occurs during meiosis. It allows matching-up of homologous pairs prior to their segregation, and possible chromosomal crossover between them. Synapsis takes place during prophase I of meiosis. WebbThe pairing of homologous chromosomes during prometaphase is called bi-orientation. O B. The cell-cycle control system monitors the tension on the kinetochores to ensure that anaphase does not occur until the sister chromatids are correctly attached to the spindle. O C. Attachment of sister This problem has been solved! Webb- The process of pairing of homologous chromosomes is called synapsis. - In each bivalent, there would be a total of two centromere(s). - In a bivalent, you should be able … highlight drugstore