chiasmata造句
(1) Terminalization The movement of chiasmata to the end of the bivalent arms, a process that may occur during late prophase I of meiosis.
(2) Chiasma (pl. chiasmata) A connection between homologous chromosomes seen during the prophase stage of meiosis.
(3) Chiasmata are seen during this stage, and by the end of diakinesis the nucleoli and nuclear membrane have disappeared.
(4) The chiasmata observed during the later stages of the meiotic prophase are cytological evidence of earlier cross-over events.
(5) The chiasmata can slip off the ends of the bivalents, and thus chiasma frequency may be reduced by terminalization.
(6) Chiasmata also help to hold homologs together until the start of anaphase, thus helping to ensure the correct distribution of chromosomes into the daughter nuclei .
(7) Crossing over The exchange of material between homologous chromatids by the formation of chiasmata.
(8) We has discussed the mechanism of the trivalent synaptic adjustment, and it's important use to control the chiasmata and disjunction of the chromosomes.
(9) Conclusion:Homologues pairing in mice is in different ways, the number of chiasmata and crossing over is various too.
(10) Lateral element of synaptonemal complexes produced different numbers of chiasmata.
(11) Genetic recombination can occur without the formation of a chiasmata.