Chapter 9 Review

1
Chapter 9 Review

• Cell Division

2

• Bacterial cells divide by. Explain how this
  division works. What is the name of the partition
  that develops between the bacterial cell before
  it divides into 2 cells.
• What is the difference between prokaryotic
  chromosomes and eukaryotic chromosomes?
• What is chromatin? What are the two domains of
  chromatin? Which is the expressed region? Which
  region is not expressed?
• Explain the process (the different steps taken)
  to condense eukaryotic chromosomes so they will
  fit in the nucleus. Be sure to include the name
  of each new structure.

3

• What is a karyotype?
• Name the following parts of the chromosome using
  the following words
• Centromere
• Chromatid
• Short arm
• Long arm
• What are the five phases of the eukaryotic cell
  cycle? Briefly explain what is occurring during
  each phase.
• Which 3 stages make up interphase?

4

• Mitosis is divided into 4 stages, what are the
  stages in order?
• In what stage do centrioles move to opposite ends
  of the cell?
• In what stage do the microtubules begin to pull
  each chromosome toward the center of the cell?
• In what stage are the chromosomes aligned down
  the center of the cell?
• What is the name for the imaginary plane through
  the center of the cell where the chromosomes
  align?
• In what stage do microtubules pull sister
  chromatids toward the poles?
• In what stage do chromosomes begin to uncoil
• and the nucleolus reappears in each new nucleus?

5

• What is cytokinesis? Explain the difference
  between plant and animal cytokinesis.
• Name the 3 cell checkpoints and explain the
  function of the checkpoint and what part of the
  cycle does it occur in?
• Explain the importance of cyclins and
  cyclin-dependent kinases in the role of cell
  checkpoints.
• is a failure or disruption of cell cycle control.
• Name the two kinds of genes that can disturb the
  cell cycle when they are mutated. Tell how each
  genes work.