Summary: Bio Test #3

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  • Bio Test #3

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  • The generation of daughter cells from a parent cell-Cells do this to reproduce organisms and to grow and repair multicellular organisms-Involves the transfer of genetic information from parents to daughter cells

    Cell Division
  • Combines genetic information from two individuals of opposite mating types to produce offspring

    Sexual reproduction
  • Occurs in Prokaryotes (Bacteria and Archaea) Function: Asexual reproduction

    Binary fission (cell division)
  • Occurs in Eukaryotes: single-celled or multicellularFunction: Asexual reproductionOccurs in Eukaryotes: multicellularFunction: Growth of individual; repair and replacement of cells and tissues

    Mitotic division (cell division)
  • The process that generates two genetically identical daughter cells (clones) from a single parent cell in eukaryotes-Involves the even distribution of replicated DNA (packaged in multiple chromosomes) into new daughter cells-During process, the nucleus divides in a process called MITOSIS, followed by a division of the cytoplasm called CYTOKINESIS-Allows eukaryotes to replace dead cells and add new cells to the body; many single-celled eukaryotes can reproduce asexually through this process; some multicellular eukaryotes as well

    Mitotic division
  • Allows the daughter cells to become specialized into any of the 220 different cell types found in the human body (truly multicellular)

    Cell differentiation
  • Small group of gamete-producing cells, that are reserved early in embryonic development for eventually producing gametes for the new individual

    Germ line cells
  • Unspecialized stem cells that serve to grow, regenerate, and repair tissues through adulthood

    Adult stem cells
  • Each DNA double helix is packaged with special proteins to form long strands of ______?

    Chromatin
  • DNA is replicated during S phase, resulting in two identical double helices, known as ______.-These are held together at a region called the centromere-Later, in mitosis, they are split and become chromosomes of the new daughter cells.

    Sister chromatids
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