G1 S G2 M
G1 S G2 M - Related Videos
06:40
G2-seq: A High Throughput Sequencing-based Technique for Identifying Late Replicating Regions of the Genome
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2018
We describe a technique for combining flow cytometry and high throughput sequencing to identify late replicating regions of the genome.
08:30
Visualizing Single-Stranded DNA Foci in the G1 Phase of the Cell Cycle
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Cited by 2 •
2023
The following protocol presents the detection of single-stranded DNA foci in the G1 phase of the cell cycle utilizing cell cycle synchronization followed by RPA2 immunofluorescent staining.
09:32
Cell Cycle Analysis
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2023
Cell cycle refers to the set of events through which a cell grows, replicates its genome, and ultimately divides into two daughter cells through the process of mitosis. Because the amount of DNA in a cell shows characteristic changes throughout the cycle, techniques known as cell cycle analysis can be used to separate a population of cells according to the different phases of cell cycle they are in, based on their varying DNA content.This video will cover the principles behind cell cycle...
10:57
Mapping Absolute DNA Density in Cell Nuclei using Single-molecule Localization Microscopy
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2025
The present protocol describes a method measuring absolute DNA densities within adherent cell nuclei using Voronoi tessellation of single-molecule localization microscopy data, known volume, genome size, and cell cycle stage.
01:45
Positive Regulator Molecules
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2019
To consistently produce healthy cells, the cell cycle—the process that generates daughter cells—must be precisely regulated. Internal regulatory checkpoints ensure that a cell’s size, energy reserves, and DNA quality and completeness are sufficient to advance through the cell cycle. At these checkpoints, positive and negative regulators promote or inhibit a cell’s continuation through the cell cycle. Positive regulators include two protein groups that allow cells to pass through regulatory...
FAQs
Checkpoints regulate progression by monitoring DNA integrity and replication rather than allowing the sequence to proceed without control. This surveillance helps identify conditions associated with errors in the genome or its duplication and links phase-to-phase movement with genome protection. In biology, that relationship explains how cell-cycle control can limit the propagation of inaccuracies during growth and division.
The order places genome duplication between cellular growth and chromosome separation. That arrangement coordinates the production of a duplicated genome with the later division process, so growth, copying, preparation, and separation function as connected stages rather than unrelated events. Studying this sequence helps explain how eukaryotic cells organize repeated cycles of proliferation.
G2 is important because it connects completion of DNA copying with preparation for division. Its position provides a stage in which the cell-cycle program can be regulated before duplicated chromosomes are separated in M phase. Together with checkpoint monitoring of replication and DNA integrity, this helps preserve orderly progression into division.
M phase includes mitosis, which separates duplicated chromosomes, and is followed by cytokinesis. This distinction matters because the sequence treats chromosome separation and the subsequent cytokinesis as linked but separate events. In biology, separating these steps clarifies how nuclear chromosome organization is coordinated with completion of cellular division.
The sequence provides a framework for understanding how organisms develop, replace damaged cells, and maintain tissues. These outcomes depend on repeated, regulated progression through growth, genome duplication, preparation, and division. Applying the cell-cycle framework to tissue biology therefore connects events inside individual eukaryotic cells with larger patterns of development and maintenance.
Loss of cell-cycle control matters because errors can escape the regulation that normally monitors DNA integrity and replication. Such disruption may produce genomic instability, a condition associated in the overview with diseases such as cancer. The topic therefore connects basic phase progression to disease biology, showing why checkpoint regulation is important beyond ordinary cell division.