mitosis & meiosis
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| Cytokinesis | the division of de cell cytoplasm that usually follows or meiotic division of de nucleus .
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| Replication | to copy.
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| Gametes | an egg or a sperm cell; a sex cell.
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| Chromosomes | a structure in all living things of a single molecule of DNA bonded to various proteins and that carries the games .
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| Haploid | single-simple.
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| Gonad | an organ that produces gametes; a testis or ovary.
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| Ovum | a mature female reproductive cell, especially of a human or other animal, that can divide to give rise to an embryo usually only after fertilization by a male cell.
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| Polar bodies | each of the small cells that bud off from an oocyte at the two meiotic divisions and do not develop into ova.
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| Mitosis | a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth. Compare with meiosis.
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| Sperm | A sperm is the male "gamete" or sex cell.
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| Cell cycle | is the series of events that take place in a cell leading to its division and duplication of its DNA (DNA replication) to produce two daughter cells.
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| Chromatid | each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.
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| Centromere | the point on a chromosome by which it is attached to a spindle fiber during cell division.
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| Chromatin | the material of which the chromosomes of organisms other than bacteria (i.e., eukaryotes) are composed. It consists of protein, RNA, and DNA.
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| Diploid | containing two complete sets of chromosomes, one from each parent. Compare with haploid.
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| Interphase | the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.
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| Crossing over | the exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring.
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| Tetrad | a group or set of four.
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| Synapsis | the fusion of chromosome pairs at the start of meiosis.
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| Mitosis | a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth. Compare with meiosis.
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| Gametogenesis | the process in which cells undergo meiosis to form gametes.
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