Download Chapter 10 Quiz

Chapter 10 Quiz
1. If there are 12 chromosomes in an animal cell in interphase of the cell cycle, what is the diploid number of
chromosomes for this organism?
a.
b.
c.
d.
e.
6
12
24
36
48
2. Which of the following is NOT a function of mitosis in a multicellular organism?
a.
b.
c.
d.
Growth from a fertilized egg
Replacement of damaged cells
Maintenance of tissues
Production of gametes
3. Imagine that you are looking at a eukaryotic cell in the microscope. When you examine the cell's nucleus,
you see that the chromatin is spread uniformly through the nucleus—you cannot see chromosomes. Has the
cell's DNA been replicated yet? Explain.
a. The DNA has been replicated, because DNA replication occurs during interphase.
b. The DNA has not replicated, because DNA replication occurs after chromosome condensation.
c. You can't tell whether the DNA has replicated unless the DNA is condensed.
4. If a diploid cell contains an amount of DNA equal to 2n, how does a haploid gamete get a 1n number of
chromosomes and a 1n amount of DNA?
a.
b.
c.
d.
There are two meiotic divisions and four daughter cells produced in meiotic cell division.
There is only one meiotic division and two daughter cells produced in meiotic cell division.
There is only one meiotic division and four daughter cells produced in meiotic cell division.
There are two meiotic divisions and two daughter cells produced in meiotic cell division.
5. Which of the following statements about the chromosomes of prokaryotic and eukaryotic cells is TRUE?
a. Both prokaryotic and eukaryotic cells have multiple chromosomes.
b. The chromosomes of prokaryotic cells consist of a circular DNA double helix, but the chromosomes of
eukaryotic cells consist of a linear DNA double helix.
c. The chromosome of prokaryotic cells is present in their nuclei, but the chromosomes of eukaryotic cells are
in the cytoplasm.
d. Chromosomes of eukaryotic cells are attached to the plasma membrane, but the chromosomes of prokaryotic
cells float free in the cytoplasm.
6. Which of the following correctly lists the order of the stages during mitosis?
a.
b.
c.
d.
metaphase, telophase, anaphase, prophase
anaphase, prophase, metaphase, telophase
prophase, metaphase, anaphase, telophase
telophase, metaphase, anaphase, prophase
7. Which of the following organisms does NOT reproduce cells by mitosis and cytokinesis?
a.
b.
c.
d.
e.
cow
bacterium
mushroom
cockroach
banana tree
8. What event is responsible for some of the genetic variability seen in meiosis?
a.
b.
c.
d.
The process of meiosis causes an increased mutation rate.
Homologous chromosomes exchange DNA with one another.
Homologous chromosomes exchange RNA with one another.
Dividing cells exchange chromosomes during meiosis I.
9. The cells of the intestinal epithelium are continually dividing, replacing dead cells lost from the surface of
the intestinal lining. If you examined a population of intestinal epithelial cells under the microscope, most of the
cells would
a.
b.
c.
d.
be in meiosis.
be in mitosis.
be in interphase.
have condensed chromosomes.
10. When plant cells divide, small vesicles filled with carbohydrates are required to complete mitosis. Which
of the following explains their role in cell division in plants?
a.
b.
c.
d.
The carbohydrates are used to build important proteins associated with division.
The carbohydrates are used to build the spindle fibers involved in the separation of the chromosomes.
The carbohydrates are converted to phospholipids to build a new cell membrane.
The vesicles are used to construct the cell plate and the new cell wall and plasma membrane.