Lexic.us

Definition of Mitosis

1. Noun. Cell division in which the nucleus divides into nuclei containing the same number of chromosomes.

Definition of Mitosis

1. n. See Karyokinesis.

Definition of Mitosis

1. Noun. (cytology) The division of a cell nucleus in which the genome is copied and separated into two identical halves. It is normally followed by cell division. ¹

¹ Source: wiktionary.com

Definition of Mitosis

1. a type of cell division [n -TOSES] : MITOTIC [adj]

Medical Definition of Mitosis

1. A method of indirect division of a cell, consisting of a complex of various processes, by means of which the two daughter nuclei normally receive identical complements of the number of chromosomes characteristic of the somatic cells of the species. Mitosis, the process by which the body grows and replaces cells, is divided into four phases. 1. Prophase: formation of paired chromosomes, disappearance of nuclear membrane, appearance of the achromatic spindle, formation of polar bodies. 2. Metaphase: arrangement of chromosomes in the equatorial plane of the central spindle to form the monaster. Chromosomes separate into exactly similar halves. 3. Anaphase: the two groups of daughter chromosomes separate and move along the fibres of the central spindle, each toward one of the asters, forming the diaster. 4. Telophase: the daughter chromosomes resolve themselves into a reticulum and the daughter nuclei are formed, the cytoplasm divides, forming two complete daughter cells. NOTE: the term mitosis is used interchangeably with cell division, but strictly speaking it refers to nuclear division, whereas cytokinesis refers to division of the cytoplasm. In some cells, as in many fungi and the fertilized eggs of many insects, nuclear division occurs within the cell unaccompanied by division of the cytoplasm and formation of daughter cells. (13 Nov 1997)

Lexicographical Neighbors of Mitosis

Literary usage of Mitosis

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Laboratory Manual for Elementary Zoölogy by Libbie Henrietta Hyman (1919)
"In mitosis, both the nucleus and the cytoplasm are involved in a complex and remarkable behavior. The following materials have been found to be the most ..."

2. An Introduction to Cytology by Lester Whyland Sharp (1921)
"Detailed Description of the Behavior of the Chromosomes in Somatic mitosis.i—In the present account we shall depart from the order usually followed in ..."

3. The Journal of Medical Research (1901)
"In 100 fi, 0.24 mitosis. In the rest of the piece, 15840 fi, ... Rest of piece, 999 " I mitosis = 2.1% " There is a distinct increase in mitoses within the ..."

4. Foundations of Biology by Lorande Loss Woodruff (1922)
"For all practical purposes we may consider the cytoplasm as the arena in which mitosis takes place, the centrosome as the dynamic agent, and the nucleus, ..."

5. A Laboratory Manual and Text-book of Embryology by Charles William Prentiss (1915)
"As the student may not be familiar with the processes of cell division, a brief description may be necessary. (For details of mitosis see text-books of ..."

6. The Cell in Development and Inheritance by Edmund Beecher Wilson (1911)
"FIG PAGE 33. mitosis in Erysiphe 83 34. mitosis in pollen-mother-cells of lily, according to Guignard ..... 84 36. mitosis in spore-cells of Equisetum . ..."

7. A Text-book of the Principles of Animal Histology by Ulric Dahlgren, William Allison Kepner (1908)
"with the advance of mitosis in such a manner that it may take part in the ... In most animals and in some plants the spindle of mitosis has at each pole an ..."

8. Genetics; an Introduction to the Study of Heredity by Herbert Eugene Walter (1922)
"mitosis The ordinary process by which two cells are made out of one is termed mitosis. It occurs constantly, and particularly during growth, in all cellular ..."

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