Mitosis

From Conservapedia - Reading time: 1 min

The term mitosis refers to the duplication of a cell's chromosomes to allow daughter cells to receive the exact genetic makeup of the parent cell.[1] Mitosis does not occur in prokaryotes, which divide in a simpler way using their mesosomes. Errors made in the process of the copying of the cell's DNA during the prophase occasionally occur, resulting in mutations. Mitosis makes up the "M-phase" of the cell cycle, and is comprised of the following stages:

Mitosis

Prophase[edit]

  • thickening and coiling of the chromosomes
  • disappearance of the nucleolus
  • beginning of the organization of a group of fibres to form a spindle and disintegration of the nuclear membrane[2]

Prometaphase[edit]

Metaphase[edit]

  • uplining of the chromosomes along the midline of the cell[2]

Anaphase[edit]

  • separation of each chromatid pair into two identical chromosomes that are pulled to opposite ends of the cell by the spindle fibres[2]

Telophase[edit]

  • beginning of the decondensation of the chromosomes
  • breakdown of the spindle
  • reformation of the nuclear membranes and nucleoli[2]

Cytokinesis[edit]

See also[edit]


References[edit]

  1. Wile, Dr. Jay L. Exploring Creation With Biology. Apologia Educational Ministries, Inc. 1998
  2. 2.0 2.1 2.2 2.3 https://www.britannica.com/science/mitosis

Licensed under CC BY-SA 3.0 | Source: https://www.conservapedia.com/Mitosis
3 views | Status: cached on February 25 2023 13:43:42
↧ Download this article as ZWI file
Encyclosphere.org EncycloReader is supported by the EncyclosphereKSF