Respuesta :
The cell cycle has two main phases which is marked pink. These are called the interphase and m-phase. The interphase has three key stages which are gap 1, s phase and gap 2. S phase will be marked with blue because it is an important phase wherein DNA replication occurs. And the M-phase is where the cell itself divides with an equal amount of chromosomes and a new daughter cell is generated.
The two main stages of the cell cycle are interphase and M phase. Interphase is further segregated into G1, S, and G2 phase while the M phase is segregated into prophase, metaphase, anaphase, and telophase.
Further Explanation:
The cell cycle refers to an ordered flow of events which includes cell growth as well as cellular division. This cycle produces 2 new daughter cells. The cycle starts with interphase; during which, the cell grows and replicates its own DNA or deoxyribonucleic acid. The interphase begins with:
1. G1 phase: This is the primary growth phase provide nutrient to the cell.
2. S phase or synthesis of DNA: During this phase, the replication of DNA takes place. The centrosome is divide and forms mitotic spindle during the mitosis phase.
3. G2 or second gap: during this phase, the cell mainly replenishes its energy stores as well as synthesizes the proteins which are required for the chromosome manipulation.
The second phase of the cell cycle is the mitosis or M phase. Mitotic phase refers to a multiphase process during which the chromosomes are aligned, segregated, and moved into the 2 new daughter cells which are identical to each other.
This phase starts with:
1. Prophase: During this phase, the condensation of the chromosomes takes place and these chromosomes become visible. Spindle fibers formation take place, breakdown of the nuclear envelope, and nucleolus disappear.
2. Metaphase: During this phase, the formation of spindle fibers is completed and centrosomes are found at the opposite terminals of the cell. The chromosomes line up at the metaphase plate. Each of the sister chromatids is linked to the spindle fiber starting from the opposite poles.
3. Anaphase: During this phase, the cohesion proteins link with the sister chromatids and splits them down. The sister chromatids are pulled towards the opposite terminals of the cell and the non-kinetochore spindle fibers mainly lengthen and elongate the cell.
4. Telophase: During this last phase, the chromosomes arrive at the opposite terminals and start to decondense. Nuclear envelope reappears, and mitotic spindle breaks down. This marks the end of the mitosis.
The end phase of the cell cycle is called cytokinesis wherein the cleavage furrow occurs are segregates the daughter cells. In plant cells, the cell plate is responsible for the segregation of the daughter cells.
Learn more:
- Learn more about mitosis https://brainly.com/question/6462270
- Learn more about the menstrual cycle https://brainly.com/question/723944
- Learn more about meiosis https://brainly.com/question/94813
Answer Details:
Grade: High School
Subject: Biology
Chapter: Cell Cycle
Keywords:
Cell cycle, cell division, cell growth, interphase, M phase, mitotic phase, mitosis, G1, S phase, G2 phase, cytokinesis, metaphase, animal cell, telophase, plant cell, prophase, anaphase.
