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mitosis/meiosis
vocab words
| Term | Definition |
|---|---|
| mitosis | process by which a cell divides its nucleus and contents |
| diploid (number) | cell that has two copies of each chromosome,one from an egg and one from a sperm |
| chromosome (s) | long, continuous thread of DNA that consists of numerous gene and regulatory information |
| interphase | the resting phase between successive mitotic divisions of a cell or between the first and second of meiosis |
| crossing over | the exchange of genes between homologous chromosome resulting in a mixture of parental characteristics in offspring |
| Anaphase | third phase of mitosis during which chromatids separate and are pulled to opposite sides of the cell |
| haploid /monoploid | cell that has only one copy of each chromosome and monoploid is single set of chromosome |
| daughter nuclei | the two nuclei that result from the division of a single nucleus usually by mitosis |
| tetrad | a group of set of four |
| gametogenesis | process by which gametes are produced through the combination of meiosis and other maturational changes |
| meiosis | form of nuclear division that divides a diploid cell into haploid cells important in forming gametes for sexual reproduction |
| metaphase | second phase of mitosis when spindle fiber align the chromosome along the cell equator |
| cytokinesis | process by which the cell cytoplasm divides |
| disjunction | the normal separation or moving apart of chromosome toward opposite poles of the cell during cell division |
| variation | the difference in physical traits of an individual from the group to which it belongs |
| telophase | last phase of mitosis when a complete set of identical chromosomes is positioned at each pole of the cell the nuclear membranes start to form the chromosome begin to uncoil and the spindle fibers diassemble |
| replication | process by which DNA is copied |
| synapsis | the fusion of chromosome pairs at the start of meiosis |
| prophase | first phase of mitosis when chromatin condenses the nuclear envelope breaks down the nucleolus disappears and centrosomes and centrioles migrate to opposite sides of the cell |
| centriole | small cylinder -shaped organelle made protein tubes arranged in circle ,aids mitosis |
Created by:
ashley2063xo
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