INTERPHASE

12.04.2021

Variable duration. Hours, weeks, or years depending on the cell type.

Very specialized cells, how neurons or muscle fibers remain in this phase throughout their lives - resting state, g0.

G1- Postmitotic- growth, and formation of new organelles.

* It begins in daughter cells that have just emerged from mitosis.

Very specialized cells, how neurons or muscle fibers remain in this phase throughout their lives - resting state, g0.

* Synthesis of compounds and formation of cellular organelles

* Long duration in general

* Bree period in the first stages of embryonic development

Very specialized cells, how neurons or muscle fibers remain in this phase throughout their lives - resting state, g0.

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

Phase M

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.