The checkpoints in the cell cycle are points were the cell is tested for mutations. There are three checkpoints: one at the G1 stage, at the S stage, and finally at the G2 phase.
G1
CDC7 is involved in regulation of the cell cycle at the point of chromosomal DNA replication。
The Synthetic Phase, also called the S Phase, is critical in the cell cycle because it helps the cell indicate that it is ready for division. During this phase, the DNA within the cell is also copied during this process.
The cell cycle is controlled by specific cyclins, which are proteins that regulate the cell cycle.
The chemicals that regulate the cell cycle are called cyclins. They work by controlling the timing of the cell cycle in eukaryotic cells.
G2 check point.
The restriction point occurs in G1.
During the cell cycle CDK and Cyclin check for cell damage and oversized cells.
G1
Once the viral DNA is duplicated in the cell.
Once the viral DNA is duplicated in the cell.
CDC7 is involved in regulation of the cell cycle at the point of chromosomal DNA replication。
THE CELL CYCLE.
During metaphase because the chromosomes are lined up across the center of the cell.
Cell Cycle
The Synthetic Phase, also called the S Phase, is critical in the cell cycle because it helps the cell indicate that it is ready for division. During this phase, the DNA within the cell is also copied during this process.
NO light microscope can not magnify the image to see chromosomes. You can see with fluorescence microscopes to observe them during cell cycle. Light microscope is helpful to check the whole living cell.