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In biology, Mitosis is the process of chromosome segregation and nuclear division that follows replication of the genetic material in eukaryotic cells. This process assures that each daughter nucleus receives a complete copy of the organism's genetic material.
Mitosis and Meiosis proceed in two phases viz. nuclear division (Karyokinesis) in which genetic materials are shared and cytoplasmic division (Cytokinesis) in which other organelles of the cell are shared.
Mitosis 0 hours G0 phase 1. All cells originate from the single source: the fertilized oocyte. 2. All cells except for male and female sex cells (sperms and oocytes) are produced by the process of cell division called mitosis. Fundamental feature of mitosis: both descendant cells contain the same genetic material (DNA) as the parent cell.
I. Cell division -- introduction. roles for cell division: reproduction -- unicellular organisms (mitosis) growth and tissue repair in multicellular organisms (mitosis) production of gametes, sex cells, for sexual reproduction (meiosis) for an eukaryotic cell to divide a few events required:
In this lecture we review mitosis, the process by which the chromosomes of somatic cells are apportioned equally to two daughter cells during division. Mitosis ensures that all of our cells inherit the same genetic information. We will compare mitosis with meiosis, which is the process by which the gametes are made.
The difference between the two processes is that mitosis occurs in non-reproductive cells, or somatic cells, and meiosis occurs in the cells that participate in sexual reproduction, or germ cells. You can navigate to specific sections of this handout by clicking the links below.
•Mitosis is conventionally divided into five phases: – Prophase – Prometaphase – Metaphase – Anaphase – Telophase •Cytokinesis is well underway by late telophase [Animations and videos listed on slide following figure]
