sister chromatid การใช้

• Instead, they remain tightly associated with the centromeres of non-disjoined sister chromatids.
• Active separase can then cleave Scc1 for release of the sister chromatids.
• One of these cohesin proteins crucial for sister chromatid cohesion is Scc1.
• Sister chromatids at this point are called " daughter chromosomes ".
• In vertebrates, sister chromatid cohesion is released in 2 steps via distinct mechanisms.
• The sister chromatids can then be pulled to separate locations in the cell.
• In " nondisjunction ", sister chromatids fail to separate during anaphase.
• The microtubules then contract to pull the sister chromatids of each chromosome apart.
• During normal mitosis, sister chromatids separate into two identical daughter cells.
• In the case of pre-meiotic doubling, recombination-if it happens-occurs between identical sister chromatids.
• Progression from metaphase to anaphase is marked by sister chromatid separation.
• Meiosis II involves the separation of sister chromatids in both sexual and parthenogenetic species.
• The cohesin multiprotein complex is required for sister chromatid cohesion.
• This complex encircles the two sister chromatids and resists the pulling force of microtubules.
• Unrepaired 6-O-methylguanine can also lead to cell cycle arrest, sister chromatid exchange, or apoptosis.
• Their results indicate that interfering with this positive securin-separase-cdc14 loop decreases sister chromatid separation synchrony.
• According to this page the two sister chromatids together can also be called a dyad.
• This hypothesis states that sister chromatids have differing epigenetic signatures, thereby also differing expression regulation.
• The "'centromere "'is the part of a chromosome that links sister chromatids or a dyad.
• When replication occurs, non-random segregation of sister chromatids ensures the fates of the daughter cells.