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Mitosis Schumacher
Mitosis Meiosis
| Question | Answer |
|---|---|
| The double-layered membrane surrounding the nucleus of a eukaryotic cell, separating the nucleoplasm from the cytoplasm. | Nuclear membrane |
| A star-shaped cluster of microtubules radiating from the pericentriolar region, and seen immediately before and during mitosis of an animal cell. | aster |
| a thin flexible barrier that surrounds all cells | cell membrane |
| threadlike structure of DNA and protein that contains genetic information; in eukaryotes, chromosomes are found in the nucleus; in prokaryotes, they are found in the cytoplasm | chromosome |
| Each DNA strand in the duplicated chromosome | chromatid |
| substance found in eukaryotic chromosomes that consists of DNA tightly coiled around histones | chromatin |
| the point at which the chromatids attach along their length | centromere |
| Spindle fibers extend from a region called the centrosome where these tiny paired structures are located | centriole |
| Any of a network of filaments that collectively form a mitotic spindle (in mitosis) and meiotic spindle (in meiosis). It is chiefly involved in moving and segregating the chromosomes during nuclear division. | spindle fibers |
| in eukaryotic cells, all cellular contents outside the nucleus; in prokaryotic cells, all of the cells' contents | cytoplasm |
| A groove formed from the cell membrane in a dividing cell as the contractile ring tightens. | cleavage furrow |
| During this phase, the chromosomes separate and move along the spindle fibers to opposite ends of the cell. | anaphase |
| During this phase, the genetic material inside the nucleus condenses and the duplicated chromosomes become visible. Outside of the nucleus, a spindle starts to form. | prophase |
| During telophase, the chromosomes, which were distinct and condensed, begin to spread out into a tangle of chromatin. | telophase |
| During this phase, the centromeres of the duplicated chromosomes line up across the center of the cell. Spindle fibers connect the centromere of each chromosome to the two poles of the spindle. | metaphase |