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Anaphase
Stage of mitosis and meiosis in which the chromosomes moves to the oposite ends of the nuclear spindle.
Daughter chromosomes move toward the poles of the spindal.
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Apoptosis
- Programmed Cell Death (PCD)
- Involving cascade of specific cellular events leading to death and destruction of the cell
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Aster
Short radiationg fibers about the cenrioles at the poles of the spindle
- Star like structures form around centromes during mitosis, during
- mitosis 2 asters migrate to opposite sides of the nucleus in
- prepreation of mitotic spindle formation
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Barr Body
- Dark staining body in the nuclei of femmale mammels that contains a inactive X chromosome
- -Inactive X chromosome in a female cell
- -AKA, Sex chromoatin
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Centriole
Cellular structure existing in pairs
Existing in pairs organizes the mitotic spindal for chromosomal form aster during mitosis
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Cell Cycle
Repeating sequene of celllar events that consists of enterphase, mitosis, and cytokinesis
Series of events envolving growth, replicationand division in a eukaryotic cell
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Centrosome
- Central microtublule organizing center of cells, regulates cell cycle progression
- Microtubule Organizing Center (MOTC)
- Animal cells contain two centroles
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Centromere
- Constriction where sister chromatids of a chromosome are held together.
- region of a chromosome to which the spindal fiber is attached.
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Cleavage Furrow
Indintation that begins the processs of cleavage, by which human cells undergo cytokinesis
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Cytokinesis
Division of cytoplasm following mitosis and meiosis
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Daughter Cell
Cell that rises froma parent cell by mitosis or meiosis
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Diploid
(2n) Cell condition in which two of each type of chromosome are present in the nucleus
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Fertilization
Union of a sperm and egg nucleus, which creates a zygote
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Gamete
Haploid sex cell egg and spermwhich join fertilization to form a zygote
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Haploid
The "n" number of chromosomes in a gamete of individual
Half the diploid number
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Homologous Chromosome
Member of a pair of chromosomes that are alike that come together in synapsis during prophase of the first meiotic division.
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Homologue
Member of a momologous pair of chromosomes
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Interkinesis
Period between meiosis I and meiosis II, during which no DNA replication takes place.
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