Chapter 12 Quiz 1

Question 1 of 32

1

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?

Select one of the following:

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.

Explanation

Question 2 of 32

1

What is inside a bacteriophage?

Select one of the following:

nucliec acid
carbohydrate
protein
lipid

Explanation

Question 3 of 32

1

In what way is DNA like a book?

Select one of the following:

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.

Explanation

Question 4 of 32

1

In which cells is the accurate transmission of information most important?

Select one of the following:

sex cells
nerve cells
bone cells
skin cells

Explanation

Question 5 of 32

1

Which of the following is a nucleotide found in DNA?

Select one of the following:

deoxyribose + phosphate group + polymerase
deoxyribose + phosphate group + cytosine
adenine + phosphate group + thymine
cytosine + phosphate group + guanine

Explanation

Question 6 of 32

1

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

Select one of the following:

19.9%
21.5%
13.4%
28.8%

Explanation

Question 7 of 32

1

Based on Chargaff’s rule, the percentage of cytosine in the DNA of the bacterium, S. Lutea in Figure 12–3, should be around

Select one of the following:

73.2
29.4%.
26.6%.
36.6%.

Explanation

Question 8 of 32

1

Which scientist made x-ray diffraction photos of DNA?

Select one of the following:

Chargaff
Avery
Franklin
Watson

Explanation

Question 9 of 32

1

What is the chronological order of the important discoveries in the structure of DNA?

Select one of the following:

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

Explanation

Question 10 of 32

1

Watson and Crick discovered the two strands in DNA

Select one of the following:

run in oppisite directions.
run in random directions.
run in perpendicular directions.
run in the same direction.

Explanation

Question 11 of 32

1

Which bacteria killed the mice in Griffin’s transformation experiment?

Select one of the following:

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

Explanation

Question 12 of 32

1

Griffith called the process he observed transformation because

Select one of the following:

the harmless bacteria had been transformed.
the experiment had been transformed.
the mouse has been transformed.
the harmful bacteria had been transformed.

Explanation

Question 13 of 32

1

What did Avery conclude caused transformation?

Select one of the following:

A protein was the transforming factor.
A carbohydrate was the transforming factor.
DNA was the transforming factor.
A lipid was the transforming factor.

Explanation

Question 14 of 32

1

What do bacteriophages infect?

Select one of the following:

viruses.
bacteria.
mice.
humans.

Explanation

Question 15 of 32

1

Why did Hershey and Chase label the viral DNA with radioactive phosphorous and not radioactive sulfur?

Select one of the following:

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.

Explanation

Question 16 of 32

1

Which part of the bacteriophage in Figure 12–1 is the genetic material?

Select one of the following:

A
B
C
D

Explanation

Question 17 of 32

1

Figure 12–2 shows the structure of (not the structure labeled X, the whole figure.)

Select one of the following:

a RNA molecule.
a protein.
A DNA molecule.
an amino acid.

Explanation

Question 18 of 32

1

Because of base pairing in DNA, the percentage of

Select one of the following:

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

Explanation

Question 19 of 32

1

Which two bases pair together in DNA?

Select one of the following:

thymine and cytosine
cytosine and guanine
adenine and guanine
guanine and thymine

Explanation

Question 20 of 32

1

What would Hershey and Chase have concluded if both radioactive 32P and 35S were found in the bacteria in their experiment?

Select one of the following:

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.

Explanation

Question 21 of 32

1

Bacteriophages inject protein into bacteria, altering the bacteria’s genetic information.

Select one of the following:

True
False

Explanation

Question 22 of 32

1

DNA is a nucleic acid made up of nucleosomes joined into long strands or chains by covalent bonds.

Select one of the following:

True
False

Explanation

Question 23 of 32

1

The three parts of a DNA nucleotide are the phosphate group, deoxyribose, and the base.

Select one of the following:

True
False

Explanation

Question 24 of 32

1

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

Select one of the following:

True
False

Explanation

Question 25 of 32

1

Watson and Crick discovered that covalent bonds hold base pairs together at the center of a strand of DNA.

Select one of the following:

True
False

Explanation

Question 26 of 32

1

Fill the blank space to complete the text.

The structure labeled X in Figure 12–2 is a(an) .

Explanation

Question 27 of 32

1

Fill the blank space to complete the text.

The matching strand to the one in Figure 12–7, reading from the bottom up, would be .

Explanation

Question 28 of 32

1

Fill the blank space to complete the text.

The Watson and Crick model of DNA is a(an) , in which two strands are wound around each other.

Explanation

Question 29 of 32

1

Fill the blank space to complete the text.

In figure 12–8, the percentage of guanine would be .

Explanation

Question 30 of 32

1

What stores information in a cell?

Select one of the following:

LIpid
Carbohydrate
DNA
Protein

Explanation

Question 31 of 32

1

Fill the blank space to complete the text.

Interpret Visuals What process did Griffith identify in the series of experiments in Figure 12–11?

Explanation

Question 32 of 32

1

	Created by Jack Alkema over 7 years ago

Biology Quiz on Chapter 12 Quiz 1, created by Jack Alkema on 12/01/2017.

Chapter 12 Quiz 1

Question 1 of 32

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?

Select one of the following:

Explanation

Question 2 of 32

What is inside a bacteriophage?

Select one of the following:

Explanation

Question 3 of 32

In what way is DNA like a book?

Select one of the following:

Explanation

Question 4 of 32

In which cells is the accurate transmission of information most important?

Select one of the following:

Explanation

Question 5 of 32

Which of the following is a nucleotide found in DNA?

Select one of the following:

Explanation

Question 6 of 32

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

Select one of the following:

Explanation

Question 7 of 32

Based on Chargaff’s rule, the percentage of cytosine in the DNA of the bacterium, S. Lutea in Figure 12–3, should be around

Select one of the following:

Explanation

Question 8 of 32

Which scientist made x-ray diffraction photos of DNA?

Select one of the following:

Explanation

Question 9 of 32

What is the chronological order of the important discoveries in the structure of DNA?

Select one of the following:

Explanation

Question 10 of 32

Watson and Crick discovered the two strands in DNA

Select one of the following:

Explanation

Question 11 of 32

Which bacteria killed the mice in Griffin’s transformation experiment?

Select one of the following:

Explanation

Question 12 of 32

Griffith called the process he observed transformation because

Select one of the following:

Explanation

Question 13 of 32

What did Avery conclude caused transformation?

Select one of the following:

Explanation

Question 14 of 32

What do bacteriophages infect?

Select one of the following:

Explanation

Question 15 of 32

Why did Hershey and Chase label the viral DNA with radioactive phosphorous and not radioactive sulfur?

Select one of the following:

Explanation

Question 16 of 32

Which part of the bacteriophage in Figure 12–1 is the genetic material?

Select one of the following:

Explanation

Question 17 of 32

Figure 12–2 shows the structure of (not the structure labeled X, the whole figure.)

Select one of the following:

Explanation

Question 18 of 32

Because of base pairing in DNA, the percentage of

Select one of the following:

Explanation

Question 19 of 32

Which two bases pair together in DNA?

Select one of the following:

Explanation

Question 20 of 32

What would Hershey and Chase have concluded if both radioactive 32P and 35S were found in the bacteria in their experiment?