Copyright

Overview of Cell Division Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. A protein that plays a central role in DNA folding

Question 2 2. ____ reproduction is a form of reproduction from a single parent based on ____.

Question 3 3.

Sister chromatids segregate to opposite poles during which of the following types of cell division?

I. Mitosis

II. Meiosis I

III. Meiosis II

Question 4 4.

The following are consequences of meiotic recombination:

I. Increased genetic diversity

II. Exchange of parts of homologous chromosomes

III. Stabilization of chromosomes at the metaphase plate

Question 5 5. Two aberrant cells are found in the dividing skin tissue of an otherwise normal human. One cell has only one copy of chromosome 16, while the other has three copies. The cause of these aberrant cells is most likely due to _____.

Page 2

Question 6 6.

Replication precedes which of the following types of cell division?

I. Mitosis

II. Meiosis I

III. Meiosis II

Question 7 7.

Place the following steps in the cell cycle into the order in which they occur.

I. G1

II. G2

III. S phase

IV. M phase

Question 8 8.

Which of the following statements about gametes are true?

I. In sexual reproduction, each parent provides genetic material for the formation of either an egg or a sperm cell.

II. Gametes are produced by mitosis.

III. If a sexually reproducing organism is diploid, the gametes are haploid.

Question 9 9. The process in which the duplicated DNA of a diploid cell is separated into two daughter cells is called:

Question 10 10.

Which of the following is an example of aneuploidy?

I. A haploid cell with one copy of chromosome 21

II. A diploid cell with three copies of chromosome 21

III. A diploid cell with four copies of the X chromosome

Page 3

Question 11 11. Which of the following statements is TRUE?

Question 12 12. In general, how many chromosomes can usually be lost before it is considered a lethal event?

Question 13 13.

Which of the following are primary functions of the centromere?

I. Hold sister chromatids together

II. Protect chromosomes

III. Repair DNA damage

Question 14 14. At conception, your mother contributed a gene that encoded for the sickle hemoglobin (hemoglobin S), while your father contributed the same gene that encoded for normal hemoglobin (hemoglobin A). Which of the following denotes the DNA structures which carry these variants?

Question 15 15. Chromosomes are maximally condensed at this step.

Page 4

Question 16 16. The organelle that serves as a microtubule organizing center during cell division is the

Question 17 17. Which of the following structures is unique to meiosis?

Question 18 18.

Loss of one of the telomeres of a chromosome could result in which of the following?

I. Chromosome shortening

II. Loss of genomic information

III. An increase in chromosome number

Question 19 19.

Chromatids can be found in which of the following types of cell division?

I. Mitosis

II. Meiosis I

III. Meiosis II

Question 20 20. Segregation of ribosomes in cell division occurs during _____.

Page 5

Question 21 21. If the cell of a diploid organism (2n=4) undergoes mitosis, how many chromosomes are present in each daughter cell?

Question 22 22. Which one of the following best defines binary fission?

Question 23 23. Sickle cell anemia results from a mutation in the hemoglobin gene on both homologous chromosomes. At conception, which of the following is a plausible explanation for why some people with this mutation might not be at risk of developing sickle cell anemia?

Question 24 24.

Which of the following roles in the cell could non-coding DNA perform?

I. Provide structural support at the end of chromosomes.

II. Encode a protein that will play a significant role in cell division.

III. Serve functional purposes.

Question 25 25. During this step, the nuclear membrane breaks down.

Page 6

Question 26 26. Organize these steps in the order in which they would occur during cell division.

Question 27 27. A diploid cell which has one copy of chromosome 16 would be _____.

Question 28 28. All of the following occur during interphase EXCEPT:

Question 29 29. After meiosis I, each daughter cell contains:

Question 30 30. What is the maximum number of sister chromatids that can exist during mitosis for any given chromosome?

Overview of Cell Division Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

NES Biology (305): Practice & Study Guide  /  Science Courses
Support