Question 1

When Griffith injected a mixture of dead S bacteria and live,capsuleless R bacteria,the mice:

Accepted Answer

A)   remained healthy
B)   died of blood poisoning
C)   became ill but lived
D)   reproduced quickerE) A) and C)
F) All of the above

Question 2

The process when an individual gene moves from one place in the genome to another is called a:

Accepted Answer

A)   transposition
B)   frame shift mutation
C)   transition
D)   base substitution
E)   base deletionF) B) and E)
G) A) and B)

Question 3

A base substitution will lead to a frame-shift mutation.

Accepted Answer

A) True 
 B)False

Question 4

The Hershey-Chase experiment demonstrated that RNA,not protein,is the hereditary material.

Accepted Answer

A) True 
 B)False

Question 5

In DNA,the amount of adenine always equals the amount of thymine,and the amount of guanine always equals the amount of cytosine.

Accepted Answer

A) True 
 B)False

Question 6

If one strand of a DNA molecule has the base sequence ATTGCAT,its complementary strand will have the sequence:

Accepted Answer

A)   ATTGCAT
B)   TAACGTA
C)   GCCATGC
D)   CGGTACGE) A) and C)
F) B) and C)

Question 7

Hershey and Chase tagged the DNA of viruses with radioactive phosphorus,and their protein coats with radioactive sulfur.When the viruses were allowed to infect bacteria,what did the viruses transfer to the bacteria?

Accepted Answer

A)   Radioactive phosphorus and sulfur
B)   Radioactive sulfur
C)   Radioactive phosphorus
D)   Neither radioactive phosphorus nor sulfurE) C) and D)
F) A) and B)

Question 8

The significance of the Griffith,Avery and Hershey-Chase experiments was that they demonstrated that:

Accepted Answer

A)   genes were located on chromosomes
B)   enzymes transformed bacteria
C)   proteins were what genes were composed of
D)   DNA was the molecule of heredityE) B) and C)
F) A) and C) D

Question 9

When Frederick Griffith injected dead bacteria of the virulent S strain into mice,the mice:

Accepted Answer

A)   remained healthy
B)   died of blood poisoning
C)   became ill but lived
D)   reproduced quickerE) B) and C)
F) A) and D)

Question 10

Which London surgeon noted in 1775 that chimney sweeps exhibited frequent cancer of the scrotum?

Accepted Answer

A)   Katsusaburo Yamagiwa
B)   John Hill
C)   Sir Percivall Pott
D)   Ernst Winder
E)   Richard DollF) C) and D)
G) B) and E)

Question 11

In the Griffith experiment,why did the mice become ill when injected with a mixture of dead S bacteria and live,capsuleless R bacteria?

Accepted Answer

A)   RNA was passed from the live R bacteria to the dead S bacteria,bringing them back to life.
B)   RNA was passed from the dead virulent S bacteria to the live nonvirulent R bacteria.
C)   DNA was passed from the dead virulent S bacteria to the live nonvirulent R bacteria.
D)   Protein was passed from the dead virulent S bacteria to the live nonvirulent R bacteria.
E)   The virulent S bacteria were not 100% dead and so were still able to make the mice ill.F) A) and D)
G) A) and C)

Question 12

The building blocks of DNA are called:

Accepted Answer

A)   proteins
B)   bases
C)   nucleotides
D)   acidsE) None of the above
F) A) and B)

Question 13

DNA is also known as the:

Accepted Answer

A)   alpha helix
B)   beta helix
C)   double helix
D)   triple helixE) B) and C)
F) None of the above

Question 14

The two strands of DNA are said to be __________ to one another.

Accepted Answer

complementary

Question 15

What observation did Dr.Katsusaburo Yamagiwa make to lead him to believe that chemicals cause cancer?

Accepted Answer

A)   He observed that chimney sweeps exhibited frequent cancer of the scrotum.
B)   He observed unusual tumors of the nose in snuff users and suggested tobacco as the cause.
C)   He observed that cancer rates were 40 times higher in smokers than in nonsmokers.
D)   He observed that when coal tar extracts were applied to rabbit skin,cancers eventually developed.E) All of the above
F) C) and D)

Question 16

In his experiments,Griffith found that transformation occurs naturally in bacteria.Explain how Griffith found this out.

Accepted Answer

Griffith found that the gene for a polys...

Question 17

When Frederick Griffith infected mice with a virulent strain of Streptococcus pneumoniae,the mice:

Accepted Answer

A)   remained healthy
B)   died of blood poisoning
C)   became ill but lived
D)   reproduced quickerE) C) and D)
F) B) and C) B

Question 18

Which researcher in 1761 noted unusual tumors of the nose in snuff users and suggested tobacco as the cause?

Accepted Answer

A)   Katsusaburo Yamagiwa
B)   John Hill
C)   Sir Percivall Pott
D)   Ernst Winder
E)   Richard DollF) A) and B)
G) B) and D)

Question 19

How many carbon atoms does deoxyribose have?

Accepted Answer

A)   4
B)   5
C)   6
D)   7
E)   8F) A) and B)
G) D) and E)

Question 20

The copying of DNA before cell division is referred to as DNA ___________________.

Accepted Answer

replicatio...

Exam 11: DNA: The Genetic Material

When Griffith injected a mixture of dead S bacteria and live,capsuleless R bacteria,the mice:

Correct AnswerverifiedShow Answer

The process when an individual gene moves from one place in the genome to another is called a:

Correct AnswerverifiedShow Answer

A base substitution will lead to a frame-shift mutation.

Correct AnswerverifiedShow Answer

The Hershey-Chase experiment demonstrated that RNA,not protein,is the hereditary material.

Correct AnswerverifiedShow Answer

In DNA,the amount of adenine always equals the amount of thymine,and the amount of guanine always equals the amount of cytosine.

Correct AnswerverifiedShow Answer

If one strand of a DNA molecule has the base sequence ATTGCAT,its complementary strand will have the sequence:

Correct AnswerverifiedShow Answer

Hershey and Chase tagged the DNA of viruses with radioactive phosphorus,and their protein coats with radioactive sulfur.When the viruses were allowed to infect bacteria,what did the viruses transfer to the bacteria?

Correct AnswerverifiedShow Answer

The significance of the Griffith,Avery and Hershey-Chase experiments was that they demonstrated that:

Correct AnswerverifiedD

When Frederick Griffith injected dead bacteria of the virulent S strain into mice,the mice:

Correct AnswerverifiedShow Answer

Which London surgeon noted in 1775 that chimney sweeps exhibited frequent cancer of the scrotum?

Correct AnswerverifiedShow Answer

In the Griffith experiment,why did the mice become ill when injected with a mixture of dead S bacteria and live,capsuleless R bacteria?

Correct AnswerverifiedShow Answer

The building blocks of DNA are called:

Correct AnswerverifiedShow Answer

DNA is also known as the:

Correct AnswerverifiedShow Answer

The two strands of DNA are said to be __________ to one another.

Correct Answerverifiedcomplementary

What observation did Dr.Katsusaburo Yamagiwa make to lead him to believe that chemicals cause cancer?

Correct AnswerverifiedShow Answer

In his experiments,Griffith found that transformation occurs naturally in bacteria.Explain how Griffith found this out.

Correct AnswerverifiedGriffith found that the gene for a polys...View AnswerShow Answer

When Frederick Griffith infected mice with a virulent strain of Streptococcus pneumoniae,the mice:

Correct AnswerverifiedB

Which researcher in 1761 noted unusual tumors of the nose in snuff users and suggested tobacco as the cause?

Correct AnswerverifiedShow Answer

How many carbon atoms does deoxyribose have?

Correct AnswerverifiedShow Answer

The copying of DNA before cell division is referred to as DNA ___________________.

Correct Answerverifiedreplicatio...View AnswerShow Answer

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D

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complementary

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Griffith found that the gene for a polys...
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B

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