1. “Chromosomes & Cell Reproduction”
Ch. 6 Test Prep
“Chromosomes & Cell Reproduction”

2. Multiple Choice
Chromosomes that are similar in size, shape, and genetic content are called _____.
A. autosomes
B. sex chromosomes
C. homologous chromosomes
D. DNA

3. Multiple Choice
If nondisjunction occurs, one of the resulting cells will receive _____.
A. two homologues of a chromosome
B. four homologues of a chromosome
C. six homologues of a chromosome
D. eight homologue of a chromosome

4. Multiple Choice
A mutation in which the chromosome piece reattaches to the original chromosome but in the reverse orientation, is known as a(n) _____.
A. duplication
B. inversion
C. deletion
D. translocation

5. Multiple Choice
In human sexual reproduction, a male haploid gamete and a female haploid gamete unite to form which of the following?
A. an egg cell with 46 chromosomes
B. a zygote with 23 chromosomes
C. a zygote with 46 chromosomes
D. a sperm cell with 23 chromosomes

6. Multiple Choice
Chromosomes that determine the sex of an individual are called _____.
A. autosomes
B. sex chromosomes
C. homologous chromosomes
D. chromatids

7. Multiple Choice
Which of the following is the LEAST likely cause of cancer?
A. overproduction of growth-promoting proteins
B. overproduction of control proteins that slow the cell cycle
C. inactivation of control proteins that slow the cell cycle
D. inactivation of control proteins that stop the cell cycle

8. Multiple Choice DNA replication is checked during the _____.
A. cell growth (G1) checkpoint
B. DNA synthesis (G2) checkpoint
C. mitosis checkpoint
D. cytokinesis checkpoint

9. Multiple Choice
Cells that might never divide include which of the following?
A. skin cells
B. nerve cells
C. sex cells
D. All of the above

10. Multiple Choice The cell cycle controls cell division _____.
A. only in eukaryotes
B. only in prokaryotes
C. in both eukaryotes and prokaryotes
D. only in multicellular organisms

11. Multiple Choice Mitosis occurs _____.
A. immediately after the synthesis phase
B. before the second growth phase
C. after the second growth phase
D. after cytokinesis

12. Multiple Choice During telophase, the _____.
A. cytoplasm divides forming two new cells
B. nuclear membrane dissolves
C. chromosomes line up in the center of the cell
D. None of the above

13. Multiple Choice Plant cells _____. A. lack centrioles
B. lack a cell membrane
C. divide to produce cells of unequal size
D. All of the above

14. Multiple Choice
Cell division in eukaryotes differs from cell division in prokaryotes because _____.
A. in eukaryotes, the organelles must also be divided between cells
B. prokaryotes lack a nucleus
C. prokaryotes have a circular chromosome
D. All of the above

15. Multiple Choice Which of the following is NOT a stage of mitosis?
A. prophase
B. metaphase
C. cytokinesis
D. telophase

16. Multiple Choice
Which of the following does NOT play a role in cytokinesis in plant cells?
A. Golgi apparatus
B. belt of protein threads
C. cell membrane
D. cell plate

17. Multiple Choice
A B C D
Which stage shows telophase? C

18. Multiple Choice
A B C D
Which stage shows anaphase? A

19. Multiple Choice
A B C D
Which stage shows prophase? B

20. Multiple Choice
A B C D
Which stage shows metaphase? D

21. Multiple Choice
A B C D
Which of the following correctly indicates the order in which mitosis occurs?
A. D, C, B, A C. B, D, A, C
B. A, D, C D. A, C, B, D
C. B, D, A, C

22. Multiple Choice
The structure in the center of the plant cell could NOT be formed without which of the following?
A. cell plate
B. Golgi apparatus
C. cell membrane
D. All of the above

23. Multiple Choice
The stage of the cell cycle that these cells are entering into is _____.
A. first growth (G1) phase
B. synthesis (S) phase
C. mitosis
D. cytokinesis

24. Multiple Choice
The structure that is helping to divide the two new plant cells that are forming is called the _____.
A. belt of protein threads
B. ribosomes
C. centromere
D. cell plate

25. Multiple Choice
The condition in which a diploid cell has an extra (or third) chromosome is called _____.
A. monosomy
B. nondisjunction
C. trisomy
D. karyotype

26. Multiple Choice
Not counting the sex chromosomes, humans have 22 pairs of homologous chromosomes called _____. These code for most of our traits.
A. sex chromosomes
B. autosomes
C. somatic cells
D. lysosomes

27. Multiple Choice
The human chromosome number found in somatic cells can best be described as _____.
A. 46
B. 2n
C. diploid
D. all of the above

28. Multiple Choice
The human chromosome number found in sex cells can best be described as _____.
A. 23
B. n
C. haploid
D. all of the above

29. Multiple Choice An extra chromosome is caused by _____.
A. a point mutatuion
B. nondisjunction
C. monosomy
D. a deletion mutation

30. Multiple Choice Males have the following sex chromosomes: A. XO B. XX
C. YY
D. XY

31. Multiple Choice Eukaryotes use cell division to _____. A. grow
B. develop
C. reproduce
D. All of the above

32. Multiple Choice
During the karyotyping activity, homologous chromosomes were paired together due to _____.
A. size
B. banding patterns
C. both A & B
D. neither A nor B

33. Matching
1. mutations 2. gametes 3. zygote 4. DNA 5. karyotype A. egg cells and sperm cells B. supplies information that directs a cell’s activities and determines its characteristics C. changes in an organism’s genetic material D. a diploid cell that results from the fusion of two haploid gametes E. a picture of the chromosomes found in an individual’s cells
1. C 2. A 3. D 4. B 5. E

34. Matching
6. synthesis (S) phase 7. first growth (G1) phase 8. cytokinesis 9. cell cycle 10. mitosis A. chromatids are formed B. nucleus is divided into two nuclei C. major portion of the cell’s life D. cytoplasm divides E. a repeating sequence of cellular growth and division
6. A 7. C 8. D 9. E 10. B

35. Matching
11. cell plate 12. prophase 13. centriole 14. spindle fiber 15. anaphase A. made of an individual microtubule B. nuclear envelope dissolves C. membrane-bound cell wall D. centromeres divide E. made of nine triplets of microtubules
11. C 12. B 13. E 14. A 15. D

36. TEST MOVED TO MONDAY 2/29!!! ALSO, DON’T FORGET ABOUT YOUR WRITING PROMPTS!!!