Cell Growth and Reproduction Keystone Review

Eligible Content Objectives
Describe the events that occur during the cell cycle: interphase, nuclear division (mitosis, meiosis), cytokinesis
Compare the processes and outcomes of mitotic and meiotic nuclear division
Describe the process that can alter the composition or number of chromosomes (crossing over and nondisjunction)

Organisms reproduce in one of two ways: Asexual reproduction and Sexual reproduction

  • ______is the process by which single-celled and some multicellular organisms make an exact copy of itself and other multicellular organisms repair and replace body cells
  • ______is the process by which multicellular and some single-celled organisms produce offspring that are genetically different from the parent

  • What happens during each phase of the cell cycle during asexual reproduction?

Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

  • What happens during each phase of the cell cycle during sexual reproduction?

Prophase I
Metaphase I
Anaphase I
Telophase I
Prophase II
Metaphase II
Anaphase II
Telophase II

  • Describe when and how the above nondisjunction would take place?

______

Cellular Growth and Reproduction Keystone Review Questions

Which is the one difference between a parent cell and a daughter cell that results from mitosis?

  1. The daughter cell has sister chromatids, while the parent cell does not.
  2. The daughter cell has half the number of chromosomes as the parent cell.
  3. The daughter cell has paired chromosomes, while the parent cell does not.
  4. The daughter cell has half the amount of genetic material as the parent cell.

Which sentence lists the events in the cell cycle in correct order, from earlier to later?

  1. The chromosomes replicate; the nuclear membrane dissolves.
  2. The sister chromatids are separated; the chromosomes condense.
  3. The nuclear membrane reforms; the chromosomes align in the middle of the cell.
  4. The chromosomes become longer and thinner; spindle fibers attach to the centromeres.

The diagram represents a cell undergoing meiosis. The cell is from an organism with 60 chromosomes in its normal body cells.

  1. Cell p contains 30 chromosomes, cell q contains 30, and cell r contains 15.
  2. Cell p contains 60 chromosomes, cell q contains 30, and cell r contains 15.
  3. Cell p contains 60 chromosomes, cell q contains 30, and cell r contains 30.
  4. Cell p contains 60 chromosomes, cell q contains 60, and cell r contains 30.