Mitosis and Meiosis Vocabulary
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Created by:
emeryralston on November 3, 2008
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Mitosis and Meiosis vocabulary
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33 terms
Terms | Definitions |
|---|---|
 anaphase | the stage of meiosis or mitosis when chromosomes move toward opposite ends of the nuclear spindle |
| Asters | microtubules and fibers that radiate out from the centrioles |
| Asexual reproduction | reproduction without the fusion of gametes |
| Blastula | early stage of an embryo produced by cleavage of an ovum |
| Centromere | a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape |
| Centriole | one of two small cylindrical cell organelles composes of 9 triplet microtubules |
| Chromatid | one of two identical strands into which a chromosome splits during mitosis |
| Chromatin | the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins |
| Chromosome | a threadlike body in the cell nucleus that carries the genes in a linear order |
| Crossing over | the interchange of sections between pairing homologous chromosomes during the prophase of meiosis |
| Cytokinesis | organic process consisting of the division of the cytoplasm of a cell following karyokinesis bringing about the separation into two daughter cells |
| Diploid | having two of each chromosome |
| DNA Replication | The process of doubling the DNA that occurs before mitosis |
| Germ Cells | the only cells that can undergo meiosis |
| Haploid | the actual number of different types of chromosomes a cell processes |
| Homologous Pairs | in diploid cells, a pair of identical chromosomes is called an homologous |
| Interphase | the phase of a cell's life cycle between the reproductive stages of mitosis |
| Meiosis | (genetics) cell division that produces reproductive cells in sexually reproducing organisms |
| Metaphase | the second stage of mitosis |
| Microtubules | mitosis, cell shape, in cilia and flagella |
| Mitosis | cell division in which the nucleus divides into nuclei containing the same number of chromosomes |
| Oogenesis | development of ova |
| Ova | another word for eggs |
| Ovum | one egg |
| Polyploid | having more than a diploid number of chromosomes |
| Prophase | the first stage of mitosis when chromosomes form from chromatin and the nuclear membrane is absorbed into the cell |
| Reduction Division | (genetics) cell division that produces reproductive cells in sexually reproducing organisms |
| Sexual Reproduction | reproduction involving the union or fusion of a male and a female gamete |
| Somatic Cells | body cells |
| Spermatogenesis | development of spermatozoa |
| Spindle fibers | help pull apart the cell during replication and are made up of micrtubules |
| Synapsis | the side by side pairing of homologous maternal and paternal chromosomes at the start of meiosis |
| Telophase | the final stage of mitosis |
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