Cell Cycle Quiz: Mitosis, Interphase And Cytokinesis!

1. Which part of the cell cycle will the sister chromatids line up in the center?

Prophase

Metaphase

Anaphase

Telophase

They "MeET" in the middle in METaphase.

Explanation

They "MeET" in the middle in METaphase.

2. Which phase in the cell cycle is DNA replicated?

Prophase

Interphase, during G1

Interphase during S

Interphase during G2

S phase: Synthesis of DNA.

Explanation

S phase: Synthesis of DNA.

3. What happens during interphase?

The cell divides.

The cell grows and performs its normal functions.

The cell is in stasis. It is not growing.

The cell is growing and dividing

Interphase is when the cell is growing and performing its normal functions. (It will also replicate its DNA in the S phase).

Explanation

Interphase is when the cell is growing and performing its normal functions. (It will also replicate its DNA in the S phase).

4. Why do cells divide when they get too large?

Transportation of wastes becomes a problem for large cells.

When a cell is too large, materials can not get to all parts of the cell.

None of the above.

When the volume is too large, BOTH getting nutrients throughout the cell and removing waste products will be problems.

Explanation

When the volume is too large, BOTH getting nutrients throughout the cell and removing waste products will be problems.

5. Which part of the cell cycle is the nuclear membrane reformed?

Metaphase

Anaphase

Telophase

Cytokinesis

During telophase, the nuclear membrane starts to reform around the separated sets of chromosomes. This is because telophase is the final stage of mitosis, where the chromosomes have already been pulled apart and are now moving towards opposite ends of the cell. As the chromosomes reach their respective ends, the nuclear membrane begins to enclose them, forming two separate nuclei. This marks the completion of cell division and the beginning of cytokinesis, where the rest of the cell components divide to form two daughter cells.

Explanation

During telophase, the nuclear membrane starts to reform around the separated sets of chromosomes. This is because telophase is the final stage of mitosis, where the chromosomes have already been pulled apart and are now moving towards opposite ends of the cell. As the chromosomes reach their respective ends, the nuclear membrane begins to enclose them, forming two separate nuclei. This marks the completion of cell division and the beginning of cytokinesis, where the rest of the cell components divide to form two daughter cells.

6. What is the correct order of mitosis?

Prophase, metaphase, anaphase, telophase

Prophase, metaphase, anaphase, telophase, cytokinesis

Interphase, prophase, metaphase, anaphase, telophase, cytokinesis

Prophase, anaphase, metaphase, telophase

Mitosis is only nuclear division: "PMAT": Prophase, Metaphase, Anaphase and Telophase

Explanation

Mitosis is only nuclear division: "PMAT": Prophase, Metaphase, Anaphase and Telophase

7. Which phase(s) in the cell cycle are the chromosomes visible?

Interphase and mitosis

Mitosis

S, G2, mitosis

S, G2, interphase and cytokinesis

The chromosomes are first visible in prophase when the coil and thicken. They start to uncoil during telophase.

Explanation

The chromosomes are first visible in prophase when the coil and thicken. They start to uncoil during telophase.

8. In which phases of the cell cycle does the cell have twice as much DNA than G1?

S phase, only

S, G2, Prophase, Anaphase, Metaphase

S, G2, Prophase

S, G2, Prophase, Anaphase, Metaphase, Telophase

During the cell cycle, DNA replication occurs in the S phase, leading to the doubling of the DNA content. After this, in the G2 phase, the cell still has twice the amount of DNA as in G1 because the DNA has been fully replicated. This doubled DNA content is maintained throughout Prophase, Metaphase, and Anaphase of mitosis. During Telophase, the cell begins to divide, and the DNA is segregated into two daughter cells, returning each to the normal DNA content. Thus, the correct answer includes S, G2, Prophase, Metaphase, and Anaphase, as these phases all involve a cell with double the DNA content compared to G1.

Explanation

During the cell cycle, DNA replication occurs in the S phase, leading to the doubling of the DNA content. After this, in the G2 phase, the cell still has twice the amount of DNA as in G1 because the DNA has been fully replicated. This doubled DNA content is maintained throughout Prophase, Metaphase, and Anaphase of mitosis. During Telophase, the cell begins to divide, and the DNA is segregated into two daughter cells, returning each to the normal DNA content. Thus, the correct answer includes S, G2, Prophase, Metaphase, and Anaphase, as these phases all involve a cell with double the DNA content compared to G1.

9. Which phase(s) of the cell cycle are sister chromatids attached at the centromere?

G1, S, G2, prophase, metaphase

S, G2, prophase, metaphase

S, G2, prophase, metaphase and anaphase

Prophase, metaphase

The DNA duplicates in the S phase. The centromere remains to hold the sister chromatids together until anaphase. In anaphase, the spindle fibers shorten, pulling the sister chromatids apart.

Explanation

The DNA duplicates in the S phase. The centromere remains to hold the sister chromatids together until anaphase. In anaphase, the spindle fibers shorten, pulling the sister chromatids apart.

10. If the cell is a human cell, how many chromosomes are visible during G1?

46

92

23

None

Well, this might have been a trick question. You can't see chromosomes in G1. They are not visible until they start to coil in prophase. So the answer is 0. (There are 46 chromosomes in human somatic (body) cells).

Explanation

Well, this might have been a trick question. You can't see chromosomes in G1. They are not visible until they start to coil in prophase. So the answer is 0. (There are 46 chromosomes in human somatic (body) cells).