Campbell Biology Chapter 12 Test Bank 2024
1. 1) Eukaryotic chromosomes are composed of which of the following
macromolecules?: C) DNA and proteins
2. 2) Starting with a fertilized egg (zygote), a series of six cell divisions
would produce an early embryo with how many cells?: D) 64
3. 3) In a diploid cell with 5 chromosome pairs (2n = 10), how many
centromeres will be found in a nucleus at G2 of the cell division cycle?: B) 10
4. 5) G1 is associated with which of the following cellular events?: A) norma
growth and cell function
5. 9) Metaphase is characterized by ________.: A) alignment of chromosomes
on the equator of the cell
6. 13) FtsZ is a bacterial cytoskeletal protein that forms a contractile ring
involved in binary fission. Its function is analogous to ________.: A) the
cleavage furrow of eukaryotic animal cells
7. 15) In a diploid cell with 5 chromosome pairs (2n = 10), how many sister
chromatids will be found in a nucleus at prophase of mitosis?: C) 20
8. 16) If there are 40 centromeres in a cell at anaphase of mitosis, how many
chromosomes will be found in each daughter cell following cytokinesis?: B)
20
9. 17) If a cell at metaphase of mitosis contains 20 sister chromatids, how
many chromosomes will be present in a G1 cell?: B) 10
10. 19) Movement of the chromosomes during anaphase would be most
affected by a drug that prevents which of the following events in mitosis and
cell division?: C) shortening of microtubules
11. 20) Measurements of the amount of DNA per nucleus were taken on a
large number of cells from a growing fungus. The measured DNA levels
ranged from 3 to 6 picograms per nucleus. In which stage of the cell cycle did
the nucleus contain 6 picograms of DNA?: C) G2
12. 21) A group of cells is assayed for DNA content immediately following
mitosis and is found to have an average of 8 picograms of DNA per nucleus.
How many picograms of DNA would be found in a nucleus at prophase of
mitosis?: C) 16
13. 27) Use the figure to answer the question below. If the cell whose nuclear
material is shown in the figure continues toward completion of mitosis, which
of the following events would occur next?: C) formation of telophase nuclei
14. 30) Use the figure to answer the question below. In the figure, at which
of the numbered regions would you expect to find cells at metaphase?: C) III
only
1. 1) Eukaryotic chromosomes are composed of which of the following
macromolecules?: C) DNA and proteins
2. 2) Starting with a fertilized egg (zygote), a series of six cell divisions
would produce an early embryo with how many cells?: D) 64
3. 3) In a diploid cell with 5 chromosome pairs (2n = 10), how many
centromeres will be found in a nucleus at G2 of the cell division cycle?: B) 10
4. 5) G1 is associated with which of the following cellular events?: A) norma
growth and cell function
5. 9) Metaphase is characterized by ________.: A) alignment of chromosomes
on the equator of the cell
6. 13) FtsZ is a bacterial cytoskeletal protein that forms a contractile ring
involved in binary fission. Its function is analogous to ________.: A) the
cleavage furrow of eukaryotic animal cells
7. 15) In a diploid cell with 5 chromosome pairs (2n = 10), how many sister
chromatids will be found in a nucleus at prophase of mitosis?: C) 20
8. 16) If there are 40 centromeres in a cell at anaphase of mitosis, how many
chromosomes will be found in each daughter cell following cytokinesis?: B)
20
9. 17) If a cell at metaphase of mitosis contains 20 sister chromatids, how
many chromosomes will be present in a G1 cell?: B) 10
10. 19) Movement of the chromosomes during anaphase would be most
affected by a drug that prevents which of the following events in mitosis and
cell division?: C) shortening of microtubules
11. 20) Measurements of the amount of DNA per nucleus were taken on a
large number of cells from a growing fungus. The measured DNA levels
ranged from 3 to 6 picograms per nucleus. In which stage of the cell cycle did
the nucleus contain 6 picograms of DNA?: C) G2
12. 21) A group of cells is assayed for DNA content immediately following
mitosis and is found to have an average of 8 picograms of DNA per nucleus.
How many picograms of DNA would be found in a nucleus at prophase of
mitosis?: C) 16
13. 27) Use the figure to answer the question below. If the cell whose nuclear
material is shown in the figure continues toward completion of mitosis, which
of the following events would occur next?: C) formation of telophase nuclei
14. 30) Use the figure to answer the question below. In the figure, at which
of the numbered regions would you expect to find cells at metaphase?: C) III
only
