Campell Biology ch.8 mitosis Flashcards
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286927353 | cell division | when a cell undergoes reproduction, the two "daughter" cells that result are genetically identical to each other and to the original "parent" cell. | |
286927354 | chromosomes | thread like structures that have genetic info that is passed down from one generation to the next | |
286927355 | asexual reproduction | single celled organisms that reproduce by dividing in half, and the offspring are genetic replicas | |
286927356 | sexual reproduction | requires fertilization of an egg by a sperm | |
286927357 | zygote | fertilized egg | |
286927358 | binary fission | a form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size | |
286927359 | chromatin | long strands of DNA found in the eukaryotic cell nucleus; condense to form chromosomes | |
286927360 | sister chromatids | two identical copies of a parent chromosome which are attached to one another at the centromere. | |
286927361 | centromere | area where the chromatids of a chromosome are attached | |
286927362 | cell cycle | the regular sequence of growth and division that cells undergo | |
286927363 | interphase | a period between two mitotic or meiotic divisions during which the cell grows, copies its DNA, and synthesizes proteins | |
286927364 | prophase | first and longest phase of mitosis, during which the chromosomes become visible and the centrioles separate and take up positions on the opposite sides of the nucleus | |
286927365 | metaphase | the stage in mitosis or meiosis in which the duplicated chromosomes line up along the equatorial plate of the spindle | |
286927366 | anaphase | the third phase of mitosis, during which the chromosome pairs separate and move toward opposite poles | |
286927367 | telophase | the final stage of mitosis or meiosis, during which a nuclear membrane forms around each set of new chromosomes | |
286927368 | cytoknesis | The cytoplasm completely splits, organelles divide and are split between the 2 new cells | |
286927369 | miotic spindle | football-shaped structure of microtubules that guides the separation of the two sets of daughter chromosomes | |
286927370 | centrosomes | regions of cytoplasmic material that in animal cells contain structures called centrioles | |
286927371 | cleavage furrow | the area of the cell membrane that pinches in and eventually separates the dividing cell | |
286927372 | cell plate | A double membrane across the midline of a dividing plant cell, between which the new cell wall forms during cytokinesis. | |
286927373 | growth factor | signal cell cycle control system | |
286927374 | anchorage dependence | The requirement that a cell must be attached to a substratum in order to divide. |