27 Jun apu scin130 quiz 2
Question
Question 1 of 30
3.33/ 3.33 Points
Gametes and spores:
A.Are diploid
B.Are haploid
C.Are autosomal
D.Are both produced by animals
E.Join in fertilization
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Question 2 of 30
3.33/ 3.33 Points
Crossing-over occurs during which of the following phases?
A.Metaphase II
B.Metaphase I
C.Prophase II
D.Prophase I
E.Anaphase I
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Question 3 of 30
3.33/ 3.33 Points
In the cell cycle the “S” stands for:
A.Synapsis
B.Synthesis
C.Somatic
D.Sexual
E.Sister
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Question 4 of 30
3.33/ 3.33 Points
What is the proper order of events in the cell cycle?
A.M, G1, G2, S
B.G1, S, G2, M
C.G1, G2, M, S
D.G1, M, G2, S
E.G1, G2, S, M
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Question 5 of 30
3.33/ 3.33 Points
If a diploid parent cell undergoes mitosis, then afterwards there will be:
A.two haploid daughter cells
B.four haploid daughter cells
C.four diploid daughter cells
D.two diploid daughter cells
E.one haploid daughter cell and one diploid daughter cell
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Part 2 of 8 – 16.65/ 16.65 Points
Question 6 of 30
3.33/ 3.33 Points
If you were writing a paper on Wachtershaüser and Huber’s hypothesis on how the first cells arose, your paper would highlight which of the following hypotheses?
A.The virus first hypothesis.
B.The lysogenic hypothesis.
C.The facultative anaerobe hypothesis.
D.The prebiotic soup hypothesis.
E.The iron-sulfur world hypothesis.
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Question 7 of 30
3.33/ 3.33 Points
Which of the following is not considered a relatively new and emergent virus?
A.Ebola
B.Smallpox
C.West Nile encephalitis
D.Avian influenza
E.SARS
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Question 8 of 30
3.33/ 3.33 Points
Prokaryotes which make their own nutrients with the use of sunlight are referred to as
A.saprotrophic.
B.chemoautotrophic.
C.photoautotrophic.
D.chemoheterotrophic.
E.autoheterotrophic.
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Question 9 of 30
3.33/ 3.33 Points
Which of the following is the correct order of stages in the lytic cycle?
A.Attachment, biosynthesis, penetration, maturation, release
B.Attachment, penetration, maturation, biosynthesis, release
C.Attachment, biosynthesis, maturation, penetration, release
D.Attachment, penetration, biosynthesis, maturation, release
E.Attachment, maturation, biosynthesis, penetration, release
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Question 10 of 30
3.33/ 3.33 Points
When a bacteriophage carries portions of bacterial DNA from one cell to another, this is known as
A.conjugation.
B.transformation.
C.endospore formation.
D.transduction.
E.binary fission.
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Part 3 of 8 – 16.65/ 16.65 Points
Question 11 of 30
3.33/ 3.33 Points
Most of the sediment that accumulates on the ocean floor is due to
A.dead amoeboids and radiolarians.
B.dead foraminiferans and ciliates.
C.dead slime molds and radiolarians.
D.dead flagelletes and euglenoids.
E.dead foraminiferans and radiolarians.
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Question 12 of 30
3.33/ 3.33 Points
Paramecium.apus.edu/access/content/group/science-and-technology-common/Biological%20Sciences/Course%20Materials/SCIN130/Images/Lab%20Quiz%20Images/Paramecium.jpg”>
This figure shows the anatomy of a Paramecium. What does “e” represent?
A.Trichocyst
B.Micronucleus
C.Food vacuole
D.Oral groove
E.Contractile vacuole
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Question 13 of 30
3.33/ 3.33 Points
If you were studying extensions that form when cytoplasm streams in a particular direction you would be studying
A.the mitochondria.
B.pseudopods.
C.contractile vacuoles.
D.food vacuoles.
E.the nucleolus.
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Question 14 of 30
3.33/ 3.33 Points
Among protists, haploid reproductive cells that are often resistant to adverse conditions are termed
A.spores
B.apicomplexes
C.pyrenoids
D.trichocysts
E.flagella
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Question 15 of 30
3.33/ 3.33 Points
In which of the following would you observe an alternation of generations?
A.Diatoms
B.Dinoflagellates
C.Chlamydomonas
D.Ulva
E.Volvox
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Part 4 of 8 – 16.65/ 16.65 Points
Question 16 of 30
3.33/ 3.33 Points
If you were studying the female portion of the moss gametophyte you would be studying
A.the rhizoids.
B.the archegonium.
C.the sporangium.
D.the stalk.
E.the antheridium.
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Question 17 of 30
3.33/ 3.33 Points
Anatomy of a flower.apus.edu/access/content/group/science-and-technology-common/Biological%20Sciences/Course%20Materials/SCIN130/Images/Lab%20Quiz%20Images/Flower%20Anatomy.jpg”>
This figure shows the parts of the flower. What does “c” represent?
A.The carpel
B.The pollen tube
C.The stigma
D.The stamens
E.The anther
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Question 18 of 30
3.33/ 3.33 Points
Anatomy of a flower.apus.edu/access/content/group/science-and-technology-common/Biological%20Sciences/Course%20Materials/SCIN130/Images/Lab%20Quiz%20Images/Flower%20Anatomy.jpg”>
This figure shows the parts of the flower. What does “e” represent?
A.The anther
B.The carpel
C.The stigma
D.The pollen tube
E.The stamens
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Question 19 of 30
3.33/ 3.33 Points
Which of the following is a characteristic possessed by none of the three groups of terrestrial fungi?
A.Formation of mycorrhizae
B.Production of nonmotile spores in asci
C.Flagellated spores and gametes
D.Production of nonmotile spores in basidia
E.Thick-walled zygospore
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Question 20 of 30
3.33/ 3.33 Points
Alteration of generations .apus.edu/access/content/group/science-and-technology-common/Biological%20Sciences/Course%20Materials/SCIN130/Images/Lab%20Quiz%20Images/Alteration%20of%20generations.jpg”>
This figure shows the alternation of generations. What does “a” represent?
A.Fertilization
B.Haploid
C.Mitosis
D.Meiosis
E.Sporophyte
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Part 5 of 8 – 6.66/ 6.66 Points
Question 21 of 30
3.33/ 3.33 Points
To calculate the number of cells that are undergoing mitosis, you must determine …
A.the sum of cells in interphase minus those in prophase
B.the sum of cells in prophase, metaphase, anaphase and telephase minus those in interphase
C.the sum of the cells in anaphase and telophase
D.the sum of cells in prophase, metaphase, anaphase and teleophase
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Question 22 of 30
3.33/ 3.33 Points
Prepared slides of _________ tissue were compared to _________ tissue.
A.adipose, nervous
B.human, mouse
C.fresh, processed
D.normal, cancerous
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Part 6 of 8 – 9.99/ 9.99 Points
Question 23 of 30
3.33/ 3.33 Points
Cell cycle checkpoint ___ ensures that chromosomes are distributed accurately to daughter cells.
A.M
B.G1
C.G0
D.G2
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Question 24 of 30
3.33/ 3.33 Points
In which phases are sister chromatids visible and attached to each other at the centromere?
A.Anaphase and telophase
B.Interphase and prophase
C.Metaphase and anaphase
D.Prophase and metaphase
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Question 25 of 30
3.33/ 3.33 Points
In mitosis, after duplication, the nuclei of the two daughter cells have _______ chromosomes as the parent cell.
A.one quarter as many
B.half as many
C.the same number of
D.twice as many
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Part 7 of 8 – 9.99/ 9.99 Points
Question 26 of 30
3.33/ 3.33 Points
What observation can be made about cancer cells based on the mitotic indices that have been measured in normal versus cancer cells?
A.Cancerous cells divide more often
B.Cancerous cells divide at the same rate as normal cells
C.Cancerous cells divide more slowly than normal cells
D.Cancerous cells spend more time in interphase
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Question 27 of 30
3.33/ 3.33 Points
Cancerous cells are said to have a cell cycle that is “deregulated,” or different than a normal cell cycle. What is the most evident sign of this deregulation?
A.Cancerous cells divide at the same rate as normal cells
B.Cancerous cells divide more slowly than normal cells
C.Cancerous cells divide more often
D.Cancerous cells spend more time in interphase
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Question 28 of 30
3.33/ 3.33 Points
How did the mitotic index of cancerous cells compare to that of normal cells for all three tissues?
A.The mitotic index was lower in cancer cells
B.The mitotic index was higher in cancer cells
C.The mitotic index was in both cell types was equal
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Part 8 of 8 – 6.66/ 6.66 Points
Question 29 of 30
3.33/ 3.33 Points
Based on the results from the lab, would you expect to see a difference in the rate of cell division in cancerous skin tissue compared to normal skin tissue? Why or why not?
Question 30 of 30
3.33/ 3.33 Points
If you were to analyze a sample of cancerous brain tissue and noncancerous brain tissue, what predictions could you make about their respective mitotic indices and why?
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