BISC 100

  1. How do prokaryotic cells divide?
    Binary Fission - Circular chromosome replicates and daughter chromosomes of that chromosome attach to different regions of cell 16-11
  2. Relationship between DNA and eukaryotic chromosome
    During cell division, eukaryotic chromosomes condense into highly coiled 4 armed structures. The tight coiling and high degree of organization in this supercoiled DNA facilitates proper segregation during mitosis and cell division.

    When the DNA is supercoiled in preparation for cell division, the pair of copies of each chromosome come together to form the characteristic x-shaped structure.
  3. Eukaryotic cell - sister chromatids &  daughter cells
    The point of attachment of the two complete copies occurs at the centromere. Each copy of the chromosome is called a chromatid*. The two copies of each chromosome are called sister chromatids. Sister chromatids are assigned to daughter cells by mitosis
  4. Why is cell division important?
    • 1. replace lost or damaged tissue (burns/wounds)
    • 2. Increase in size and complexity (fetus)
    • 3. To reproduce
  5. What is a cell cycle: what does it do? and what does it consist of?
    • The cell cycle multiplies cells
    • Consists of two major phases
Card Set
BISC 100