Content Benchmark L.12.A.3
Students know all body cells in an organism develop from a single cell and contain essentially
identical genetic instructions. E/S
Sample Test Questions
1st Item Specification: Explain how organisms grow through the processes of cellular
division and differentiation.
Depth of Knowledge Level 1
1. Use the following diagram to answer the next question.
Diagram 1
2n
2n
Diagram 2
2n
2n
2n
Diagram 3
n
2n
Diagram 4
2n
n
n
Which diagram correctly represents mitosis?
A. Diagram 1
B. Diagram 2
C. Diagram 3
D. Diagram 4
2. Normal mitotic division results in
A. two daughter cells with half the number of chromosomes as the parent cell.
B. two daughter cells with the same number of chromosomes as the parent cell.
C. four daughter cells with half the number of chromosomes as the parent cell.
D. four daughter cells with the same number of chromosomes as the parent cell.
3. If the diploid number of chromosomes is 20, what would be the chromosome number in
the egg cells of this species?
A. 5
B. 10
C. 20
D. 40
Depth of Knowledge Level 2
4. The following list describes some of the events associated with normal cell division.
I. A Nuclear membrane forms around each of set of new of chromosomes
II. Alignment of chromosomes on the equatorial plate
III. Replication of each chromosome
IV. Movement of single-stranded chromosomes toward opposite ends of cell.
During normal cell division, which series of events is chronologically correct?
A. III, II, IV, I
B. I, II, III, IV
C. III, IV, II, I
D. IV, III, I, II
5. Use the diagram below to answer the following question.
The two cells below are undergoing cytokinesis.
Division 1
Division 2
(Diagram adapted from Examgen 4.3 diagrams)
Which statement best describes these cells?
A. Division 1 could be in a plant and Division 2 could be in an animal.
B. Both cell divisions could be occurring in animal cells.
C. Division 1 could be in an animal and Division 2 could be in a plant.
D. Both cell divisions could be occurring in plants cells.
6. Use this diagram to answer the following question.
A
48
B
24
24
24
48
24
48
What two processes are represented by A and B?
A. Mitosis and Fertilization
B. Meiosis and Fertilization
C. Mitosis and Pollination
D. Meiosis and Pollination
2nd Item Specification: Recognize that all body cells in an organism have fundamentally
the same DNA.
Depth of Knowledge Level 1
7. An organism is described as 2n=30. How many chromosomes do all somatic cells of this
organism contain?
A. 15
B. 20
C. 25
D. 30
8. The cells in a cat are described as 2n=38. Which of the following types of cells does
NOT contain 38 chromosomes in the cat?
A. Muscle cell
B. Brain cell
C. Egg cell
D. Skin cell
Depth of Knowledge Level 2
9. Use the following diagram to answer the question below.
C
Nerve cell
skin cell
Diagram adapted from Examgen 4.3 diagrams
What processes are represented by A, B, and C?
A.
B.
C.
D.
Meiosis, Mitosis, Differentiation
Fertilization, Meiosis, Differentiation
Fertilization, Mitosis, Differentiation
Meiosis, Fertilization, Differentiation
10. Use the following diagram to answer the question below.
(Diagram modified from Examgen 4.3)
Location X represents the resulting cells in a developing organism. These cells
A. have different numbers of chromosomes because each cell will become a different
body part.
B. have different numbers of chromosomes because each cell will only contain the
DNA necessary to become different cell types.
C. have the same number of chromosomes because each cell received a complete set
of DNA.
D. may or may not have the same number of chromosomes because each organism is
unique.
Content Benchmark L.12.A.3
Students know all body cells in an organism develop from a single cell and contain essentially
identical genetic instructions. E/S
Answers to Sample Test Questions
1. A, DOK Level 1
2. B, DOK Level 1
3. B, DOK Level 1
4. A, DOK Level 2
5. C, DOK Level 2
6. B, DOK Level 2
7. D, DOK Level 1
8. C, DOK Level 1
9. C, DOK Level 2
10. C, DOK Level 2