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Mitosis/Meiosis
Vocabulary Words
Term | Definition |
---|---|
Mitosis | a process by which a cell divides its nucleus |
Diploid (number) | a cell that has two copies of each chromosome, one from an egg and one from a sperm |
Chromosome(s) | a long thread of DNA that consists of numerous genes |
Interphase | when the cell appears to be at rest |
Crossing over | homologous chromosomes may be exchange |
Anaphase | third phase of mitosis which chromatids separate and are pulled to opposite sides of the cell |
Haploid/Monoploid | is a cell that has only one copy of each chromosomes |
Daughter nuclei | two nuclei that result from the division of a single nucleus, usually by mitosis. |
Tetrad | consists of two homologous chromosomes, each composed of two sister chromatids |
Gametogenesis | the process in which cells undergo meiosis to form gametes. |
Meiosis | divides a diploid cell into a haploid cells |
Metaphors | second phase of mitosis where chromosomes line up at the equator |
Cytokinesis | process by which the cytoplasm divides |
Disjunction | when homologous chromosomes move apart toward the opposite poles of the cell |
Variation | physical traits of an individual from the group to which it belongs |
Telophase | last phase of mitosis which the separated chromosomes reach the opposite poles of the dividing cell |
Replication | process by which DNA is copied |
Synapsis- | a gap between neurons through which signals are sent |
Prophase | - first stage of mitosis the chromosomes become visible as paired chromatids |
Centrioles- | the development of spindle fibers in cell division |