Variable duration. Hours, weeks, or years depending on the cell type.
G1- Postmitotic- growth, and formation of new organelles.
* It begins in daughter cells that have just emerged from mitosis.
* Synthesis of compounds and formation of cellular organelles
* Long duration in general
* Bree period in the first stages of embryonic development
S phase: synthesis, replicating DNA
Each chromosome is formed by 2 identical chromatids, joined by the environment duplication of the centrosome_ 2 centroids >> 4 centroids
Phase G2: premeiotic: verification that the DNA has replicated correctly.
Short period, before the chromosomes, begin to condense for division
The nuclear division into 2 nuclei with identical genetic material + cytokinesis, evidence of cytoplasmic segmentation and formation of two daughter cells
Mitosis: maintains the number of chromosomes.
In this state the cell gains part of its energy in the segregation of chromosomes:
-> Cell metabolic activities (including transcription) are blocked to preserve energy.