The G1 phase also known as Gap 1 phase, becomes known as the first of four phases of the cell cycle that take place in eukaryotic cell division. The G2 phase also is known as Gap 2 phase, becomes known as the last of four phases of the cell cycle that take place in eukaryotic cell division.
Comparison Chart
| Basis of Distinction | G1 Phase | G2 Phase |
| Definition | The first of four phases of the cell cycle that take place in eukaryotic cell division. | The last of four phases of the cell cycle that occurs in eukaryotic cell division. |
| Process | G1 phase starts the process of interphase. | G2 phase ends the process of interphase. |
| Working | Phase, the process of synthetization, becomes a requirement for RNA and proteins since they have a role in the formation and growth of the cell. | The synthesis process becomes required for the proteins needed in the spindle formation and the mitosis |
| Next Process | The next phase is the S phase where DNA replication takes place. | Mitosis becomes the next stage where division and formation of the cell take place. |
What is G1 Phase?
The G1 phase also known as Gap 1 phase, becomes known as the first of four phases of the cell cycle that take place in eukaryotic cell division. G1 stage together with the S stage and G2 stage contain the long development time of the cell period called interphase that happens before cell division in mitosis. Amid G1 phase, the cell develops in size and orchestrates mRNA and proteins, known as histones, which become required for DNA blend. Once the necessary proteins and development get finished, the cell enters the following period of the cell cycle, S stage. The length of each stage, including the G1 stage, is diverse in a wide range of sorts of cells. In human physical cells, the cell cycle keeps going around 18 hours, and the G1 stage takes up around 1/3 of that time. In any case, in Xenopus developing lives, ocean urchin fetuses, and Drosophila incipient organisms, the G1 stage is scarcely existent and is characterized as the crevice, on the off chance that one exists, between the finish of mitosis and the S stage. G1 phase and alternate sub-phases of the cell cycle might get influenced by restricting development variables, for example, supplement supply, temperature, and space for development. Adequate nucleotides and amino acids must be available keeping in mind the end goal to combine mRNA and proteins. Physiological temperatures are ideal for cell development. In people, the normal physiological temperature is around 37 °C.
What is G2 Phase?
The G2 phase also is known as Gap 2 phase, becomes known as the last of four phases of the cell cycle that take place in eukaryotic cell division. The G2 stage is a time of agile cells development and protein amalgamation amid which the cell sets itself up for mitosis. Inquisitively, the G2 stage is not a fundamental piece of the cell cycle, as some cell sorts, mainly youthful Xenopus incipient organisms and a few growths continue straightforwardly from DNA replication to mitosis. Even though much thought about the hereditary system which manages G2 stage and resulting section into mitosis, there is still much to be found concerning its hugeness and direction, particularly with respect to the tumor. One speculation is that the development in the G2 stage gets managed as a technique for cell measure control. Splitting yeast has been beforehand appeared to utilize such an instrument, using the Cdr2-intervened spatial direction of Wee1 action. Biochemically, the finish of G2 stage happens when an edge level of active cyclin B1/CDK1 complex, otherwise called Maturation advancing variable (MPF) has formed. The movement of this compound firmly managed amid G2. Although G1 is a genuinely monitored negative controller of mitotic passage, no extensive system of cell size control in G2 has yet illustrated, and therefore it becomes difficult to monitor the experimentation. Specifically, the G2 checkpoint captures cells in G2 considering DNA harm through inhibitory control of CDK1.
Key Differences
- The G1 phase also known as Gap 1 phase, becomes known as the first of four phases of the cell cycle that take place in eukaryotic cell division. On the other hand, the G2 phase also known as Gap 2 phase, becomes known as the second of four phases of the cell cycle that take place in eukaryotic cell division.
- To get the idea of what the stage are the simple explanation becomes that the G1 phase starts the process of interphase, whereas G2 phase ends the process of interphase.
- In the G1 phase, the process of synthetization becomes a requirement for RNA and proteins since they have a role in the formation and growth of the cell. On the other hand, the synthesis process becomes required for the proteins needed in the spindle formation and the mitosis during the G2 phase.
- Once the G1 phase ends, the next step is the S phase where DNA replication takes place. Once the G2 phase ends, mitosis becomes the next stage where division and formation of the cell take place.
- Some of the cells present in the G1 phase move to the G0 phase after they become inactive while others move to the S phase. On the other hand, all the cells in the G2 phase progress to the mitosis.