Chromatids are formed when a chromosome replicates to form two identical chromatids, or sister chromatids. Therefore, chromatids are made of all the genetic material contained in a chromosome. What are sister chromatids in meiosis? Meiosis represents a process of cell division involving two rounds...
ELSEVIERBrenners Encyclopedia of Genetics
Centromere is the primary constriction on the chromosome, a region at which the sister chromatids are held together. 着丝点是染色体的主缢痕,在这个地方姐妹染色单体连在一起。 youdao Centromere --- The primary constriction on the chromosome, a region at which the sister chromatids are held toge...
百度试题 题目Sister chromatids (姊妹染色单体) 相关知识点: 试题来源: 解析 由复制产生的一个染色体的拷贝。反馈 收藏
Separation and Distribution: During mitotic anaphase or meiotic anaphase II, the cohesin protein complex cleaves leading to the dissolution of the cohesion between sister chromatids. As sister chromatids separate, they start moving towards the cell’s opposite poles, hence ensuring an equal distribution...
SCEs are observed by applying 5-bromodeoxyuridine (BrdU), a thymine analog, to cell cultures for two rounds of cell division. Subsequently, the chromosomes are stained with the Giemsa stain. Chromatids from the same chromosome stain differently; one appears clear (specifically, the chromatid th...
During meiosis, crossing over occurs between View Solution The events shown below occur during different phases - A. Centromere splits, chromatids separate and move to opposite poles, chromatids are now called chromosome B. Chromosomes cluster at opposite poles, decondensation of chromosome, reappeara...
Attachment, or cohesion, between sister chromatids is essential for their proper segregation in mitosis and meiosis [1,2]. Sister chromatids are tightly apposed at their centromeric regions, but it is not known whether this is due to cohesion at the functional centromere or at flanking centric...
Sister chromatid exchanges (SCEs) are products of joint DNA molecule resolution, and are considered to form through homologous recombination (HR). Indeed, SCE induction upon irradiation requires the canonical HR factors BRCA1, BRCA2 and RAD51. In contras
To monitor the sister chromatids segregation in the oocytes after parthenogenetic activation in live, we microinjected β5-tubulin-GFP and H2B-mCherry mRNAs into the oocytes at the GV-stage, followed by IVM. The progression of the second meiotic division after activation was recorded by time-lap...