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Honors Week 5
Mitosis and Meiosis
Question | Answer |
---|---|
anaphase | The stage of mitosis and meiosis in which the chromosomes move to opposite ends of the nuclear spindle |
asexual reproduction | involves only one parent. |
cell cycle (G1, S, G2) | a period of time in which cell prepares for cell division until new cell produces; has a two growth stages and a synthesis of DNA stage. |
cytokinesis | the division of the cell cytoplasm that usually follows mitotic or meiotic division of the nucleus. |
Interphase | the period of the cell cycle during which the nucleus is not undergoing division |
Metaphase | the stage of mitosis and meiosis, following prophase and preceding anaphase, during which the chromosomes are aligned along the equatorial plate |
Mitosis | process in which the nucleus of a cell divides into two nuclei, each with the same number and kind of chromosomes. |
Prophase | the first stage of mitosis, during which the chromosomes condense and become visible, the nuclear membrane breaks down, and the spindle apparatus forms at opposite poles of the cell. |
sexual reproduction | involving two parents. |
Telophase | The final stage of mitosis or meiosis during which the chromosomes of daughter cells are grouped in new nuclei. |
centromere | point at which replicated chromosomes are held together |
chromatids | one-half of two identical copies of a replicated chromosome. |
Diploid | term used to indicate cell containing two homologues of each chromosome. |
haploid | having a single set of unpaired chromosomes. |
crossing over | The reciprocal exchange of genetic material between during prophase I. |
genetic variation | Characteristic of an organism that makes it different from the species. |
meiosis | process in which the nucleus of a cell completes two successive divisions that produces four nuclei, each with a chromosome number that has been reduced by half. |