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cell divison voc
mitosis & meiosis
Term | Definition |
---|---|
cytokinesis | the division of the cell cytoplasm that usually follows or meiotic division of the nucleus |
replication | to copy |
gametes | an egg or sperm cell; a sex cell |
chromosomes | a structure in all living things of a single molecule of DNA bonded to various proteins and that carries the games determining heredity |
haploid | single/ simple |
gonad | a sex gland in which gametes are produced; an ovary o testes |
ovum/ova | female reproductive cell or gamete plants |
polar bodies | on of the minute cells arising from the equal meiotic division of the ovum at or near the time or fertilization |
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. |
sperm | the male sex cell |
cell cycle | The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication of its DNA |
chromatid | each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA |
centromere | the point on a chromosome by which it is attached to a spindle fiber during cell division |
chromatin | the material of which the chromosomes of organisms other than bacteria (i.e., eukaryotes) are composed. It consists of protein, RNA, and DNA. |
diploid | of a cell or nucleus) containing two complete sets of chromosomes, one from each parent. Compare with haploid. |
interphase | the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis. |
crossing over | the exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring |
tetrad | a group or set of four |
synapsis | the fusion of chromosome pairs at the start of meiosis. |
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 |
gametogenesis | the process in which cells undergo meiosis to form gametes |