Alters Quiz #2
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Part 1 of 3 - 30.0/ 35.0 Points
Question 1 of 20 5.0/ 5.0 Points
A cell that is haploid
A. is an egg
B. All of the above
C. is a sperm
D. contains only one chromosome from each pair in the parent cell
Answer Key: B
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Question 2 of 20 5.0/ 5.0 Points
The process of meiosis always begins with what type of cell?
A. diploid
B. haploid
C. asexual
D. vegetative
Answer Key: A
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Question 3 of 20 5.0/ 5.0 Points
In which phase of mitosis do pairs of sister chromatids align in one plane at the center of the cell?
A. prophase
B. anaphase
C. metaphase
D. telophase
Answer Key: C
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Question 4 of 20 5.0/ 5.0 Points
An “in situ” tumor means it is:
A. widespread
B. dangerous
C. localized
D. benign
Answer Key: C
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Question 5 of 20 0.0/ 5.0 Points
In animals somatic cells:
A. Both a and b
B. are produced by meiosis
C. include all body cells except gametes
D. are diploid
Answer Key: A
Feedback: Please review Chapter 12.
Question 6 of 20 5.0/ 5.0 Points
At the end of meiosis II, how many cells and what type of cells result?
A. four haploid
B. two haploid
C. four diploid
D. two diploid
Answer Key: A
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Question 7 of 20 5.0/ 5.0 Points
How many different forms of cancer exist?
A. 100
B. 20-50
C. more than 200
D. 2-3
Answer Key: C
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Part 2 of 3 - 25.0/ 35.0 Points
Question 8 of 20 0.0/ 5.0 Points
Which of the following is not a role of normal microbiota:
A. They thwart pathogenic bacteria
B. They produce nutrients such as vitamin K
C. They prevent overgrowth of yeast
D. They secrete substances that destroy cells
Answer Key: D
Feedback: Please review Chapter 19.
Question 9 of 20 5.0/ 5.0 Points
Bacteria that integrate their genetic material within that of the host carry out a __________ life cycle.
A. Autophagus
B. Redundant
C. Lytic
D. Lysogenic
Answer Key: D
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Question 10 of 20 5.0/ 5.0 Points
Scientists do not classify viruses with other living things for the following reason:
A. They are obligate parasites
B. They have no genetic material
C. They lack a cell membrane
D. They are nonliving
Answer Key: D
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Question 11 of 20 5.0/ 5.0 Points
Which statement best describes viruses
A. They are eukaryotes
B. They are non-living infectious agents
C. They are prokaryotes
D. They are related to archaea
Answer Key: B
Feedback: Very good!
Question 12 of 20 5.0/ 5.0 Points
Viruses can infect all of the following except:
A. Other viruses
B. Algae
C. Eukaryotes
D. Bacteria
Answer Key: A
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Question 13 of 20 5.0/ 5.0 Points
How do lysogenic viruses differ from lytic viruses?
A. Lysogenic viruses attach to host cell receptors and lytic viruses do not
B. Lysogenic viruses enter into the host cell and lytic viruses do not
C. Lysogenic viruses insert into the host cell’s DNA and lytic viruses do not
D. Lysogenic viruses assemble their manufactured “parts” into new viruses and lytic viruses do
Answer Key: C
Feedback: Excellent!
Question 14 of 20 0.0/ 5.0 Points
Which is not a feature of the lytic life cycle of a virus:
A. Attaches to cell receptor
B. Breaks open host cell
C. Insert its DNA into the host
D. Enters its nucleic acid into cell
Answer Key: A
Feedback: Please review Chapter 19.
Part 3 of 3 - 5.0/ 30.0 Points
Question 15 of 20 0.0/ 5.0 Points
Sea kelp is an example of:
A. Brown algae
B. Dinoflagellate
C. Green algae
D. Red algae
Answer Key: A
Feedback: Please review Chapter 20.
Question 16 of 20 0.0/ 5.0 Points
Which of the following method is the most recent way of classifying protists:
A. DNA comparisons
B. Ribosome comparisons
C. By looking a their metabolic differences
D. Their mobility
Answer Key: A
Feedback: Please review Chapter 20.
Question 17 of 20 0.0/ 5.0 Points
Which type of protist is likely to be found infecting aquarium fish?
A. Water molds
B. Red algae
C. Green algae
D. Slime molds
Answer Key: A
Feedback: Please review Chapter 20.
Question 18 of 20 0.0/ 5.0 Points
It is believed that aging in yeast may be due to the following:
A. The accumulation of aging genes over time
B. A gene that causes the cell to pop its lysosomes
C. A switch that causes genetic instability
D. The buildup of cancer genes introduced by viruses
Answer Key: C
Feedback: Please review Chapter 20.
Question 19 of 20 5.0/ 5.0 Points
Amoeba have the following characteristic when view through the microscope:
A. Shapeless
B. Rod-shaped
C. Shaped like a teardrop
D. Spherical
Answer Key: A
Feedback: Excellent!
Question 20 of 20 0.0/ 5.0 Points
Which protist is associated with female urinary tract infections?
A. Euglena
B. Trichomonas
C. Trypanosoma
D. Amoeba
Answer Key: B
Feedback: Please review Chapter 20.