subdivision
1. The act of subdividing, or separating a part into smaller parts.
2. A part of a thing made by subdividing. In the decimal table, the subdivision of the cubit, as span, palm, and digit, are deduced from the shorter cubit. (Arbuthnot) ...
CELL DIVISION: BINARY FISSION AND MITOSIS
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Despite differences between prokaryotes and eukaryotes, there are several common features in their cell division processes. Replication of the DNA must occur.
Cell division is a process by which a cell, called the parent cell, divides into two cells, called daughter cells. Cell division is usually a small segment of a larger cell cycle.
the division of chromosomes previous to sexual reproduction in plants and animals in which the normal diploid, somatic number of chromosomes is reduced to the monoploid (haploid), single number; same as meiosis ...
A nuclear division that produces daughter nuclei each having one-half as many centromeres as the parental nucleus. The first meiotic division reduces the number of chromosomes and centromeres to half that of the original cell.
The anterior divisions of the cervical nerves (rami anteriores), with the exception of the first, pass outward between the Intertransversarii anterior and posterior, lying on the grooved upper surfaces of the transverse processes of the vertebræ.
Cell Division and the Cell Cycle (University of Alberta): Similar to this page, but with its own glossary and questions.
Amoeba Proteus Mitosis Small photomicrographs of protistan mitosis.
division
A taxonomic grouping of related, similar classes; a high- level category below kingdom and above class.
Cell Division
Meiosis and Sexual Reproduction
There is a special kind of cell division that occurs exclusively in the gonads (ovaries and testes) of eukaryotic organisms. This special cell division is called meiosis.
Cell Division Aids
The cell is the smallest living component of any living organism. Cells are capable of taking in nutrients, generating energy, and reproducing.
Ferns (Division Filicopsida)
(Many botanists prefer the older term Pteridopsida.) ...
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Artist's impression of the extrasolar planet OGLE-2005-BLG-390Lb (with surface temperature of âˆ'220°C), orbiting its star 20,000 light years (117.5 quadrillion miles) from Earth; ...
1d GenBank Division (PRI) - There are 16 different GenBank divisions. In this example, PRI stands for primate sequences.
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division Taxonomic rank that includes related classes; synonymous to phylum used in animal systematics.
dizygotic Twins that arise from two different zygotes, hence, individuals no more closely related than two different-aged siblings.
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The division of the cytoplasm of a cell into two daughter cells and it occurs during Telophase. See karyokinesis.
Cell division
The process by which two cells are formed from one. See meiosis and mitosis.
Related Terms:
Meiosis
The term coined by Farmer and Moore (1905) for the process of two consecutive cell divisions in the diploid progenitors of sex cells.
Cell division
Related Terms:
Mitosis
The most frequent process of nuclear division (karyokinesis) in cells that produces daughter cells that are genetically identical to each other and to the parent cell.
cell division, mitosis, meiosis, cell cycle, cancer, exponential growth, lag phase, log phase, stationary phase, time lapse photography
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Cell division in multicellular organisms enables the organism to grow larger while the cells remain small. A large surface:volume ratio is due to small cell size.
Cell division was originally appreciated primarily from a microscopic observation. You could see things happening and you could see primarily the chromosomes of the cell that contain the DNA, condensing at one time in the cell cycle and segregating.
That second division divides the number of chromosomes in half. When you have half the number of chromosomes, you are called a haploid cell. Haploid means half the regular number. Diploid is the opposite (two strands).
Reduction division The first meiotic division in which the chromosome number is reduced by half.
fission -- Division of single-celled organisms, especially prokaryotes, in which mitosis does not occur. Also used to refer to mitosis in certain unicellular fungi.
flagellin -- protein which is the primary component of prokaryotic flagella.
Ciliophora Division (Phylum) of organisms within Kingdom Protista which use their numerous cilia for locomotion
(cili = eyelash; phora = bear‚ carry) ...
a division; a section.
segregation
the separation of homologous chromosomes during anaphase 1 of meiosis, producing gametes containing only one allele of each gene.
Between mitotic divisions, a normal resting or actively growing cell exists in a state known as interphase, in which the chromatin forms a highly diffuse, fibrous network that is being continuously transcribed by enzymes within the nucleus.
Variety: Subdivision of a species for taxonomic classification. Used interchangeably with the term cultivar to denote a group of individuals that is distinct genetically from other groups of individuals in the species.
Pterygota - division of insects that includes all hexapods with wings
pubescent - covered with hairs
pupa - nonfeeding stage when the larva transforms to the adult in holometabolous insects ...
cytokinesis - division of the cytoplasm, usually at the end of nuclear division.
cytoplasm - gel-like substance in which all cellular components outside the nucleus are immersed.
cytokinesis - division of the cytoplasm and plasma membrane of a single cell into two cells.
The central portion of the chromosome to which the spindle fibers attach during mitotic and meiotic division. Chemotherapy. A treatment for cancers that involves ad- ministering chemicals toxic to malignant cells. Chloramphenicol.
Animal - kingdom composed of multicellular organisms divided into two divisions: vertebrates and invertebrates, who obtain their food from external sources and reproduce sexually or asexually ...
So that it replicates and is segregated during cell division in the same way as a normal chromosome. The main uses are in preparation of genomic libraries since very large inserts (in the Mbp range) can be integrated.
Centromere A specialised chromosome region to which spindle fibers attach during cell division.
Chromatid The two identical halves of a chromosome produced for cell division and meiosis.
Developing and implementing standardized instructional modules for a lower-division course in natural science and one in humanities/social science ...
Out of 34 teams in its division, Darwin United ultimately came in 17th, placing squarely in the middle of the field and outranking half of the human-written entries.
All cells arise from other cells through cell division. In multicellular organisms, every cell in the organism's body derives ultimately from a single cell in a fertilized egg.
The number of mutations per cell division. The mutation rate can be determined from a Luria-Dulbruck fluctuation analysis. Sometimes the mutant frequency is described instead of mutation rate.
A superclass in the sperm plants (Spermatophyta) division belonging to the vascular plants (Tracheophyta) phylum of the plant kingdom.
The process of cell division in the zygote to form a multicellular embryo. There is usually no growth of cells (blastomeres) at this time so the cells decrease in volume by about 50% with each subsequent division.
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.
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 of chromosomes.
Source : Human Genome Project Information
Messenger RNA (mRNA) ...
abdomen. The posterior body division of an arthropod.
abiotic disease. A disease caused by factors other than pathogens.
abiotic disorder. A disease caused by factors other than a pathogen; physiological disorder.
Order: A taxonomic subdivision that contains groups of related families or superfamilies; usually ending in -ptera in insects.
Overwinter: A period of rest or hibernation by which insects survive the winter.
Meiosis (my-OH-sis) The type of cell division that makes egg and sperm cells. Meiosis generates cells that are genetically different from one another and contain half the total number of chromosomes in the parent cell. See haploid.
Cloning. The mitotic division of a progenitor cell to give rise to a population of identical daughter cells or clones. (See Directional cloning, Megabase cloning, Molecular cloning, Subcloning.) ...
- A plant hormone that promotes cell division. It is usually found in the roots, young fruits and in seeds.
Cytosine (C)
- Nitrogenous base found in DNA and RNA ...
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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.
transformation - morphological changes in a lymphocyte associated with the onset of division. Also used to denote the change to the autonomously dividing state of a cancer cell ...
Mitosis -- nuclear division. mRNA -- messenger RNA; an RNA molecular that functions during translation to specify the sequence of amino acids in a nascent polypeptide.
 See also: Vision, Organ, Human, Trans, Cell
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