mitosis cancer stem cell review

name first and last

*At the end of the cell cycle, how many chromosomes will each daughter cell?

• During DNA replication, the number of chromosomes is cut in half.
• During DNA replication, the number of chromosomes stays the same.
• During cell division, each daughter cell will get the same number of chromosomes/genes.
• During cell division, each daughter cell will get a random number of chromosomes/genes.

* A multicellular organism begins life as a single cell — a fertilized egg with a complete set of chromosomes. The picture below shows how the cell divides to become two cells, then four cells, eight cells, and so on. Which of the following statements best describes what happens during this process?

• Chromosomes are duplicated before cell division so that each new daughter cell has a complete set.
• Chromosomes are divided evenly during cell division so that each new daughter cell has an equal share (half) of the original set.
• Chromosomes are stored in the original cell to direct the division of all daughter cells, which do not have their own chromosomes.
• Chromosomes are randomly distributed during cell division so that some new cells have partial sets while others have complete sets.

* During which phase in the cell cycle does DNA replication happen?

• G1 phase
• G2 phase
• M phase
• S phase

* If the spindle fibers do not form, which of the following would not take place?

• Chromosomes being separated
• Nuclear membrane being broken down
• DNA is duplicated
• Chromosomes are made visible

* Put the cells shown in the diagram below in the correct order that they occur during the cell cycle.

• II, III, I, IV, V, VI
• III, VI, I, IV, II, V
• III, V, VI, IV, I, II
• I, II, III, IV, V, VI

*Some cells form a cell plate during cytokinesis. Which of the following is true of the cells in the diagram below?

• Both cells form cell plates during cytokinesis.
• Neither cell forms a cell plate during cytokinesis.
• Only cell A forms a cell plate during cytokinesis.
• Only cell B forms a cell plate during cytokinesis.

* Cyclins are a family of closely related proteins that...

• regulate the cell cycle.
• produce p53.
• cause cancer.
• work to heal wounds.

* Which is NOT true of cancer cells?

• Cancer cells can migrate to other parts of the body through the process of metastasis
• Cancer cells fail to undergo apoptosis.
• Cancer cells exit the cell cycle and enter the G0 phase.
• Cancer cells ignore signals that should cause them to stop dividing.

* During early development, all cells in the embryo of a multicellular organism are identical. Later on in development, the cells will become specialized through a process called...

• apoptosis
• cytokinesis
• differentiation
• interphase