相关知识点: 试题来源: 解析 A。细胞周期中,间期负责 DNA 复制。间期包括 G1 期、S 期和 G2 期,其中 S 期进行 DNA 复制。前期(B 选项)主要是染色体出现等变化。中期(C 选项)染色体排列在赤道板上。后期(D 选项)姐妹染色单体分离。反馈 收藏
Where is DNA located in a cell? Where is the cell's DNA located? Where does DNA replication take place in a eukaryote? What protein synthesizes the leading strand in DNA replication? What is the cellular structure that contains genetic DNA?
DNA replication1 DNAandReplication copyrightcmassengale1 HistoryofDNA copyrightcmassengale 2 HistoryofDNA •Earlyscientiststhoughtproteinwasthecell’shereditarymaterialbecauseitwasmorecomplexthanDNA•Proteinswerecomposedof20differentaminoacidsinlongpolypeptidechains copyrightcmassengale3 Transformation •Fred...
10. Petryk, N., et al., MCM2 promotes symmetric inheritance of modified histones during DNA replication. Science, 2018. 361(6409): p. 1389-1392. 11. Gan, H.Y., et al., The Mcm2-Ctf4-Polα Axis Facilitates...
Replication origins in eukaryotic cells never fire more than once in a given S phase. Here, we summarize the role of cyclin-dependent kinases in limiting DNA replication origin usage to once per cell cycle in the budding yeast Saccharomyces cerevisiae. We have examined the role of different cycl...
Initiation of DNA replication in eukaryotes begins with the binding of the origin recognition complex (ORC) to origins of replication during the G1 phase of the cell cycle. The ORC complex then serves as a platform for forming much more complicated pre-replicative complexes (pre-RCs). Formation...
Process Of Replication Replicating the entire DNA is no easy job. The human genome (Genome means a complete set ofgenespresent in the cell) has around 3 billion base pairs (Nucleotide pairing, remember?). So to make a copy of something that long would take a lot of time. But it doe...
Mitochondrial DNA stress signalling protects the nuclear genome. Nat. Metab. 1, 1209–1218 (2019). Article CAS PubMed PubMed Central Google Scholar Chatre, L. & Ricchetti, M. Large heterogeneity of mitochondrial DNA transcription and initiation of replication exposed by single-cell imaging. J....
In the present study, we employed DNA fiber analysis to investigate how pluripotent stem cells are reprogrammed into totipotent-like 2-cell-like cells (2CLCs). We show that totipotent cells of the early mouse embryo have slow DNA replication fork speed and that 2CLCs recapitulate this feature,...
The convergence point of growth-signalling pathways that control cell proliferation is the initiation of genome replication, the core of which is the assembly of pre-replicative complexes (pre-RCs), resulting in chromatin being ‘licensed’ for DNA repli