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Chapter 12 Quiz 1

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Biology Quiz sobre Chapter 12 Quiz 1, criado por Jack Alkema em 12-01-2017.
Jack Alkema
Quiz por Jack Alkema, atualizado more than 1 year ago
Jack Alkema
Criado por Jack Alkema quase 8 anos atrás
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Resumo de Recurso

Questão 1

Questão
What would have happened if Avery had added an enzyme that digested all the nucleic acids to the mixture of heat-killed bacteria, added the mixture to harmless bacteria, and injected the mixture into mice?
Responda
  • The harmless bacteria would have been transformed, and the mice would have died.
  • The harmless bacteria would have been transformed, and the mice would have lived.
  • The harmless bacteria would not have been transfromed, and the mice would have lived.
  • The harnless bacteria would not have been transformed, and the mice would have died.

Questão 2

Questão
What is inside a bacteriophage?
Responda
  • nucliec acid
  • carbohydrate
  • protein
  • lipid

Questão 3

Questão
In what way is DNA like a book?
Responda
  • DNA has information wrapped in an identifying cover.
  • DNA has information organized with an kind of index.
  • DNA has information that is periodically updated.
  • DNA has stored information, that can be copied and passed on.

Questão 4

Questão
In which cells is the accurate transmission of information most important?
Responda
  • sex cells
  • nerve cells
  • bone cells
  • skin cells

Questão 5

Questão
Which of the following is a nucleotide found in DNA?
Responda
  • deoxyribose + phosphate group + polymerase
  • deoxyribose + phosphate group + cytosine
  • adenine + phosphate group + thymine
  • cytosine + phosphate group + guanine

Questão 6

Questão
The table in Figure 12–3 shows the results of measuring the percentages of the four bases in the DNA of several different organisms. Some of the values are missing from the table. Based on Chargaff’s rule, the percentages of guanine bases in chicken DNA should be around
Image:
3657be93-7902-4eaa-90cf-f04ae1651de8 (image/png)
Responda
  • 19.9%
  • 21.5%
  • 13.4%
  • 28.8%

Questão 7

Questão
Based on Chargaff’s rule, the percentage of cytosine in the DNA of the bacterium, S. Lutea in Figure 12–3, should be around
Image:
99ab4fc8-fd19-4f83-a236-65a35bfeafb1 (image/png)
Responda
  • 73.2
  • 29.4%.
  • 26.6%.
  • 36.6%.

Questão 8

Questão
Which scientist made x-ray diffraction photos of DNA?
Responda
  • Chargaff
  • Avery
  • Franklin
  • Watson

Questão 9

Questão
What is the chronological order of the important discoveries in the structure of DNA?
Responda
  • Griffith-->Avery --> Hershey & Chase--> Franklin makes an X-ray diffraction photo of DNA --> Watson and Crick identify the double helix --> Chargaff’s ratios of nucleotides
  • Griffith-->Avery --> Hershey & Chase--> Chargaff’s ratios of nucleotides --> Franklin makes an X-ray diffraction photo of DNA --> Watson and Crick identify the double helix
  • Griffith-->Avery --> Hershey & Chase--> Franklin makes an X-ray diffraction photo of DNA --> Chargaff’s ratios of nucleotides --> Watson and Crick identify the double helix
  • Griffith-->Avery --> Hershey & Chase--> Chargaff’s ratios of nucleotides --> Watson and Crick identify the double helix --> Franklin makes an X-ray diffraction photo of DNA

Questão 10

Questão
Watson and Crick discovered the two strands in DNA
Responda
  • run in oppisite directions.
  • run in random directions.
  • run in perpendicular directions.
  • run in the same direction.

Questão 11

Questão
Which bacteria killed the mice in Griffin’s transformation experiment?
Responda
  • live harmful bacteria and heat-killed, harmless bacteria
  • live harmless bacteria, and live, harmful bacteria
  • live, harmless bacteria and heat-killed, harmful bacteria
  • live, harmless bacteria and heat-killed, harmless bacteria

Questão 12

Questão
Griffith called the process he observed transformation because
Responda
  • the harmless bacteria had been transformed.
  • the experiment had been transformed.
  • the mouse has been transformed.
  • the harmful bacteria had been transformed.

Questão 13

Questão
What did Avery conclude caused transformation?
Responda
  • A protein was the transforming factor.
  • A carbohydrate was the transforming factor.
  • DNA was the transforming factor.
  • A lipid was the transforming factor.

Questão 14

Questão
What do bacteriophages infect?
Responda
  • viruses.
  • bacteria.
  • mice.
  • humans.

Questão 15

Questão
Why did Hershey and Chase label the viral DNA with radioactive phosphorous and not radioactive sulfur?
Responda
  • DNA contains sulfur and little phosphorous.
  • Proteins acids contain sulfur and little phosphorous.
  • DNA contains phosphorus and no sulfur.
  • Proteins contain phosphorus and no sulfur.

Questão 16

Questão
Which part of the bacteriophage in Figure 12–1 is the genetic material?
Image:
d78d7af8-268a-4b97-916a-cb90e13586be (image/png)
Responda
  • A
  • B
  • C
  • D

Questão 17

Questão
Figure 12–2 shows the structure of (not the structure labeled X, the whole figure.)
Image:
652519a1-ca0e-47df-b05a-229576598e6b (image/png)
Responda
  • a RNA molecule.
  • a protein.
  • A DNA molecule.
  • an amino acid.

Questão 18

Questão
Because of base pairing in DNA, the percentage of
Responda
  • adenine molecules in DNA is much greater than the percentage of thymine molecules.
  • cytosine molecules in DNA is much greater than the percentage of guanine molecules.
  • adenine molecules in DNA is about equal to the percentage of guanine molecules.
  • thymine molecules in DNA is about equal to the percentage of adenine molecules

Questão 19

Questão
Which two bases pair together in DNA?
Responda
  • thymine and cytosine
  • cytosine and guanine
  • adenine and guanine
  • guanine and thymine

Questão 20

Questão
What would Hershey and Chase have concluded if both radioactive 32P and 35S were found in the bacteria in their experiment?
Responda
  • Genes are made of protein and carbohydrates.
  • Both the virus’s protein coat and its DNA were injected into the bacteria.
  • The virus’s protein coat was not injected into the bacteria.
  • The virus’s DNA was not injected into the bacteria.

Questão 21

Questão
Bacteriophages inject protein into bacteria, altering the bacteria’s genetic information.
Responda
  • True
  • False

Questão 22

Questão
DNA is a nucleic acid made up of nucleosomes joined into long strands or chains by covalent bonds.
Responda
  • True
  • False

Questão 23

Questão
The three parts of a DNA nucleotide are the phosphate group, deoxyribose, and the base.
Responda
  • True
  • False

Questão 24

Questão
When Griffith destroyed the DNA in his mixture containing various molecules from heat-killed bacteria, transformation no longer occurred.
Responda
  • True
  • False

Questão 25

Questão
Watson and Crick discovered that covalent bonds hold base pairs together at the center of a strand of DNA.
Responda
  • True
  • False

Questão 26

Questão
The structure labeled X in Figure 12–2 is a(an) [blank_start]_________________________[blank_end].
Image:
2756a405-b608-41e1-9ac1-aaf31ff53143 (image/png)
Responda
  • nucleotide

Questão 27

Questão
The matching strand to the one in Figure 12–7, reading from the bottom up, would be [blank_start]_________________________[blank_end].
Image:
da496ed4-8696-4e24-80ad-07d8e932455e (image/png)
Responda
  • AGCT

Questão 28

Questão
The Watson and Crick model of DNA is a(an) [blank_start]_________________________[blank_end], in which two strands are wound around each other.
Responda
  • double helix

Questão 29

Questão
In figure 12–8, the percentage of guanine would be [blank_start]_________________________[blank_end].
Image:
a73af8c4-1265-4fda-ae86-510e39758e56 (image/png)
Responda
  • 20%

Questão 30

Questão
What stores information in a cell?
Responda
  • LIpid
  • Carbohydrate
  • DNA
  • Protein

Questão 31

Questão
Interpret Visuals What process did Griffith identify in the series of experiments in Figure 12–11? [blank_start]d[blank_end]
Image:
3d38bb16-e377-40fa-998b-acf02a55955a (image/png)
Responda
  • transformation

Questão 32

Questão
Compare and Contrast In which experiments in Figure 12–11 do the mice live? [blank_start]d[blank_end]
Image:
d2ae34a5-688a-48bd-a07f-3bd7f66f56ea (image/png)
Responda
  • Experiments 2 and 3

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