1 / 11

Cell Reproduction “Mitosis”

Mitosis is a fundamental process of somatic (body) cell division essential for growth, maintenance, and asexual reproduction. The cell life cycle consists of interphase and mitotic phases. In interphase, the cell undergoes G1 (growth), S (DNA replication), and G2 (preparation for division). During mitosis, the cell divides into two identical daughter cells through four stages: Prophase, Metaphase, Anaphase, and Telophase (PMAT). Cytokinesis occurs afterward, creating distinct daughter cells in both plant and animal cells. Understanding mitosis is crucial for studying cellular functions and development.

nani
Télécharger la présentation

Cell Reproduction “Mitosis”

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cell Reproduction“Mitosis”

  2. Somatic (Body) Cell Life Cycle(everything but eggs and sperm) • INTERPHASE (Everything ‘in between’ mitotic cell divisions.) • G1: Newly formed cell grows up and does its job. • S Phase: Cell starts copying its DNA • G2: The cell continues to do its regular job, but more slowly and important organelles are duplicated. • MITOSIS • Cell divides into two identical daughter cells. • Prophase, Metaphase, Anaphase and Telophase

  3. MITOSIS • Asexual reproduction of cells. • Also called cloning and vegetative propagation. • Results in two, identical daughter cells. • Necessary for: • Maintenance • Growth • Reproduction in asexual species

  4. PMAT 4N Cell • PROPHASE • Condensed chromosomes • Bye bye nuclear envelope • Centrioles hook spindle fibers to chromosomes

  5. PMAT 4N Cell • METAPHASE • Chromosomes line up at the plate. Sister Chromatids Homologous Chromosomes

  6. 4N Cell PMAT • ANAPHASE • Spindle fibers pull sister chromatids apart toward centrosomes.

  7. PMAT 2, 2N Cells • TELOPHASE • Hello nuclear envelope! • Good bye spindle fibers! • Chromosomes decondense (is this a word?) • Cell plate forms in plants/ cell membrane pinches off in animals.

  8. Cytokinesis • PLANTS: • Cell wall forms between new cells • ANIMALS: • New plasma, or cell membrane forms around new cells.

  9. Mitosis Animation

More Related