Question 1

The was labeled using the radioisotope 32P in the Hershey-Chase experiments.

Accepted Answer

A)   RNA
B)   DNA
C)   protein
D)   carbohydrates

Question 2

Frederick Griffith is responsible for discovering what process?

Accepted Answer

A)   Replication
B)   Transmission
C)   Transformation
D)   Transduction

Question 3

Which of the following is correct regarding the Hershey-Chase experiments?

Accepted Answer

A)   They radioactively labeled the protein coat of the bacteriophage with 35S
B)   They radioactively labeled the DNA of the bacteriophage with 32P
C)   The results of the experiment indicated only the presence of 32P in the cell
D)   Their results suggested that the DNA is the genetic material
E)   All of the answers are correct

Question 4

A purine on one strand of the DNA is always paired with a pyrimidine on the other strand.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following DNA forms is most common in living organisms?

Accepted Answer

A)   A DNA
B)   B DNA
C)   Z DNA
D)   Triplex DNA

Question 6

Franklin's work provided which of the following regarding the structure of DNA?

Accepted Answer

A)   It had a helical structure
B)   The helix had more than one strand
C)   The helix contained about 10 bases per turn
D)   All of the answers are correct

Question 7

Adenine and thymine form hydrogen bonds between them, while cytosine and guanine form bonds.

Accepted Answer

A)   2 , 3
B)   3 , 4
C)   3 , 2
D)   4 , 3

Question 8

In a double-helix DNA strand, the adenine on one strand forms a hydrogen bond with a(n)  on the other strand.

Accepted Answer

A)   Adenine
B)   Guanine
C)   Thymine
D)   Cytosine

Question 9

DNA can exist as a triple helix, although its function in biological systems is not well understood.
TRUE

Accepted Answer

A) True 
 B)False

Question 10

One of the early models of DNA structure had the two strands of the helix interacting using ions.

Accepted Answer

A)   potassium
B)   sodium
C)   magnesium
D)   chlorine

Question 11

The idea that the adenine and thymine bases of the DNA interact in some manner was first proposed by .

Accepted Answer

A)   Watson and Crick
B)   Franklin
C)   Pauling
D)   Chargaff

Question 12

The first group of researchers to correctly identify the double-helix structure of DNA were .

Accepted Answer

A)   McClintock and Franklin
B)   Hershey and Chase
C)   Pauling and Avery
D)   Watson and Crick

Question 13

The individual(s)  who used ball and stick models to identify the three-dimensional structure of proteins was .

Accepted Answer

A)   Franklin
B)   Watson and Crick
C)   Hershey and Chase
D)   Pauling
E)   Chargaff

Question 14

Which of the following is incorrect regarding the T2 bacteriophage?

Accepted Answer

A)   It requires a host cell for replication
B)   The phage attaches to the cell wall of a target bacteria
C)   The phages injects the protein coat into the host cell
D)   The new phages are formed inside the host cell
E)   The new phages are released by the process of lysis

Question 15

The individuals who determined that Griffith's transforming principle was DNA were .

Accepted Answer

A)   Hershey and Chase
B)   Avery, Macleod, and McCarty
C)   Watson and Crick
D)   Creighton and McClintock

Question 16

Which of the following is a left-handed DNA molecule?

Accepted Answer

A)   A DNA
B)   B DNA
C)   Z DNA
D)   R DNA

Question 17

These individuals determined that DNA was responsible for the process of transduction in T2 phage.

Accepted Answer

A)   Hershey and Chase
B)   Avery, Macleod, and McCarty
C)   Watson and Crick
D)   Creighton and McClintock

Question 18

DNA differs from RNA in which of the following ways?

Accepted Answer

A)   The structure of the nucleotide
B)   The five-carbon sugar it uses
C)   The size of the phosphate groups
D)   The number of bases attached to the sugar
E)   All of the answers are correct

Question 19

The researcher(s)  who initially used X-ray diffraction to gather information on the DNA molecule was .

Accepted Answer

A)   Franklin
B)   Watson and Crick
C)   Hershey and Chase
D)   Pauling
E)   Chargaff

Question 20

How many bases are necessary to complete one complete twist (360 degrees)  of a DNA helix?

Accepted Answer

A)   5
B)   10
C)   100
D)   1000

Exam 9: Molecular Structure of Dna and Rna

Frederick Griffith is responsible for discovering what process?

Correct AnswerverifiedShow Answer

Which of the following is a left-handed DNA molecule?

Correct AnswerverifiedShow Answer

The was labeled using the radioisotope 32P in the Hershey-Chase experiments.

Correct AnswerverifiedShow Answer

The first group of researchers to correctly identify the double-helix structure of DNA were .

Correct AnswerverifiedShow Answer

The researcher(s) who initially used X-ray diffraction to gather information on the DNA molecule was .

Correct AnswerverifiedShow Answer

DNA can exist as a triple helix, although its function in biological systems is not well understood. TRUE

Correct AnswerverifiedShow Answer

A purine on one strand of the DNA is always paired with a pyrimidine on the other strand.

Correct AnswerverifiedShow Answer

The idea that the adenine and thymine bases of the DNA interact in some manner was first proposed by .

Correct AnswerverifiedShow Answer

The individual(s) who used ball and stick models to identify the three-dimensional structure of proteins was .

Correct AnswerverifiedShow Answer

Adenine and thymine form hydrogen bonds between them, while cytosine and guanine form bonds.

Correct AnswerverifiedShow Answer

How many bases are necessary to complete one complete twist (360 degrees) of a DNA helix?

Correct AnswerverifiedShow Answer

Which of the following is incorrect regarding the T2 bacteriophage?

Correct AnswerverifiedShow Answer

Which of the following DNA forms is most common in living organisms?

Correct AnswerverifiedShow Answer

Which of the following is correct regarding the Hershey-Chase experiments?

Correct AnswerverifiedShow Answer

The individuals who determined that Griffith's transforming principle was DNA were .

Correct AnswerverifiedShow Answer

These individuals determined that DNA was responsible for the process of transduction in T2 phage.

Correct AnswerverifiedShow Answer

DNA differs from RNA in which of the following ways?

Correct AnswerverifiedShow Answer

In a double-helix DNA strand, the adenine on one strand forms a hydrogen bond with a(n) on the other strand.

Correct AnswerverifiedShow Answer

Franklin's work provided which of the following regarding the structure of DNA?

Correct AnswerverifiedShow Answer

One of the early models of DNA structure had the two strands of the helix interacting using ions.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified