Meiosis

meiosis
the preparation and maturation of a cell, whereby the chromosome number is reduced by one half (reduction division)
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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Meiosis forms the basis of sexual reproduction and can only occur in eukaryotes.
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Meiosis is a process of cell division in eukaryotes characterized by:
two consecutive divisions: meiosis I and meiosis II
no DNA synthesis (no S phase) between the two divisions ...
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Meiosis
[Gr. meiosis - reduction]. Two consecutive nuclear divisions whereby the resultant daughter nuclei contain half the chromosome complement of other somatic cells; occurs at time of gametogenesis. Synonym: reduction division.
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Meiosis is part of the sexual process because gametes (sperm, eggs) have one half the chromosomes as diploid (2N) individuals.
In animals, meiosis occurs only when gametes (sperm, eggs) are formed.
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Definition of meiosis : ...
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Meiosis (a Greek word meaning "decrease") is a cellular process that forms the basis for sexual reproduction, together with syngamy. It is a form of nuclear division by which a diploid parent produces four haploid daughter cells.
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Meiosis is a special type of nuclear division which segregates one copy of each homologous chromosome into each new "gamete".
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Animation of meiosis illustrates the integration of replication, crossing over and segregation. A series of diagrams assists in understanding meiosis.
Photomicrographs and drawings of mitosis are also helpful.
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Meiosis
The term coined by Farmer and Moore (1905) for the process of two consecutive cell divisions in the diploid progenitors of sex cells.
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meiosis -- A two-stage type of cell division in sexually reproducing organisms. In meiosis, a diploid cell divides to produce four haploid cells, each with half the original chromosome content.
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Meiosis
Meiosis is a two-part cell division process in organisms that sexually reproduce. Learn about the various phases of meiosis.

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Meiosis: the process of cell division in which a single cell produces four daughter cells each of which contains half of the number of chromosomes of the parent cell.
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Meiosis
The process of nuclear division associated with the formation of gametes or of haploid cells from a diploid.
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meiosis: the process by which the chromosome number is halved during gamete formation.
menstruation: the process by which the endometrium is released in females.
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meiosis
(my-oh-sis) [Gk. meioun, to make smaller]
A two-stage type of cell division in sexually reproducing organisms that results in gametes with half the chromosome number of the original cell.
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Meiosis: The production of se x cells, which are not genetically identical, through a series of cell divisions. Compare to mitosis.
Messenger RNA (mRNA): A single-stranded molecule of ribonucleic acid that directs protein production.
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meiosis Process of cell division by which egg and sperm cells are formed, involving a diminution in the amount of genetic material.
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Meiosis. The reduction division process by which haploid gametes and spores are formed, consisting of a single duplication of the genetic material followed by two mitotic divisions.
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meiosis
A type of nuclear division associated with sexual reproduction, producing four haploid cells from a single diploid cell, the process involving two cycles of division.
Covered in Lab 5 Sexual Life Cycles and Meiosis ...
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Meiosis: The process of two consecutive cell divisions in the diploid progenitors of sex cells. Meiosis results in four rather than two daughter cells, each with a haploid set (1n) of chromosomes.
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At meiosis in a reciprocal translocation heterozygote, the passage ( segregation) of both normal chromosomes to one pole and both translocated chromosomes to the other pole, giving genetically balanced gametes.
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In meiosis, homologous chromosomes line up. The DNA of the chromosome is broken on both chromosomes in several places and rejoined with the other strand.
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Meiosis a special cell division resulting in sex cells with half as many chromosomes
(meio = less; -sis = the act of) ...
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Each of the two daughter strands of a duplicated chromosome joined at the centromere during mitosis and meiosis. Chromosome.
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Centromere -- a region of a chromosome to which spindle traction fibers attach during mitosis and meiosis; the position of the centromere determines whether the chromosome is considered an acrocentric, metacentric or telomeric chromosome.
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Meiosis Tutorial A tutorial on the relationship between chromosome movements in meiosis and the segregation of alleles in meiosis
Mendel, Gregor Biography of Gregor Mendel from Access Excellence ...
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(
diplonema
): The stage of meiosis I in which recombination between homologous chromosomes occurs. In females,
oocytes
are frozen at this stage at birth. Only one proceeds to the completion of meiosis every month during reproductive years.
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For a hypothetical reaction aA + bB cC + dD, the ratio would be [A]a [B]b/[C]c [D]d -megaly large meiosis A type of cell division in which diploid cells give rise to haploid cells destined to become gametes.
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Illustrate outcome of meiosis (egg and sperm.)
Understand relationship
between chromosomes, ...
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See also microspecies under apomixis, for species that reproduce without meiosis or mitosis so that each generation is genetically identical to the previous generation.
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The point where the two identical chromatids are connected during mitosis/meiosis.
Related
Chromatid ...
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Meiosis - cellular division that yields four gametes through two cellular divisions
Metaphase - phase of mitosis in which the chromosome pairs line up at the equator of the cell ...
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This process is the molecular basis of crossing over during meiosis and some DNA repair mechanisms. Another form of recombination, site-specific recombination, is found where transfer, rearrangement or insertion of specific sections of DNA occurs e.
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