Question 1

Which of the following cannot be found in DNA?

Accepted Answer

A) adenine 
B) ribose 
C) thymine 
D) guanine 
E) cytosine 
A) adenine 
B) ribose 
C) thymine 
D) guanine 
E) cytosine

Question 2

One therapeutic product now available due to recombinant DNA technology is

Accepted Answer

A) sulfamethoxazole. 
B) penicillin. 
C) human growth hormone. 
D) measles vaccine. 
E) tamoxifen. 
A) sulfamethoxazole. 
B) penicillin. 
C) human growth hormone. 
D) measles vaccine. 
E) tamoxifen.

Question 3

The nucleotides in the backbone of DNA are held together by

Accepted Answer

A) hydrogen bonds. 
B) ionic bonds. 
C) phosphodiester linkages. 
D) peptide bonds. 
E) glycosidic bonds. 
A) hydrogen bonds. 
B) ionic bonds. 
C) phosphodiester linkages. 
D) peptide bonds. 
E) glycosidic bonds.

Question 4

Which of the following is NOT a step in DNA replication?

Accepted Answer

A)  DNA polymerase forms bonds between a   of one nucleotide and a   of another on the DNA strand. 
B)  mRNA sends a message to form a new strand of DNA. 
C)  Mediated by DNA polymerase, a base on the DNA pairs with its complementary base free in solution. 
D)  DNA ligase connects short segments of DNA on one strand. 
E)  On the leading strand, the DNA is synthesized continuously. 
A)  DNA polymerase forms bonds between a   of one nucleotide and a   of another on the DNA strand. 
B)  mRNA sends a message to form a new strand of DNA. 
C)  Mediated by DNA polymerase, a base on the DNA pairs with its complementary base free in solution. 
D)  DNA ligase connects short segments of DNA on one strand. 
E)  On the leading strand, the DNA is synthesized continuously.

Question 5

The anticodon of UAG is

Accepted Answer

A) ATC. 
B) AAC. 
C) UAG. 
D) AUC. 
E) GAU. 
A) ATC. 
B) AAC. 
C) UAG. 
D) AUC. 
E) GAU.

Question 6

Which one of these base pairs is found in RNA?

Accepted Answer

A) guanine-thymine 
B) guanine-cytosine 
C) adenine-thymine 
D) adenine-cytosine 
E) adenine-guanine 
A) guanine-thymine 
B) guanine-cytosine 
C) adenine-thymine 
D) adenine-cytosine 
E) adenine-guanine

Question 7

Some sections of a DNA molecule do not code for protein synthesis. These segments are called

Accepted Answer

A) exons. 
B) codons. 
C) introns. 
D) anticodons. 
E) Okazaki fragments. 
A) exons. 
B) codons. 
C) introns. 
D) anticodons. 
E) Okazaki fragments.

Question 8

Which of the following can be found in DNA?

Accepted Answer

A) ribose 
B) GMP 
C) deoxyadenosine 
D) glycine 
E) uracil 
A) ribose 
B) GMP 
C) deoxyadenosine 
D) glycine 
E) uracil

Question 9

Mutations are the result of

Accepted Answer

A) alterations in the sugar component of the DNA backbone. 
B) exposure to water in utero. 
C) physical trauma in the mother's childhood. 
D) alterations in the phosphate of the DNA backbone. 
E) alterations in the DNA nucleotide sequence. 
A) alterations in the sugar component of the DNA backbone. 
B) exposure to water in utero. 
C) physical trauma in the mother's childhood. 
D) alterations in the phosphate of the DNA backbone. 
E) alterations in the DNA nucleotide sequence.

Question 10

When DNA duplicates itself, the correct placement of the nucleotides is accomplished by

Accepted Answer

A) complementary base pairing. 
B) polymerase. 
C) enzyme matching. 
D) transcription. 
E) base matching. 
A) complementary base pairing. 
B) polymerase. 
C) enzyme matching. 
D) transcription. 
E) base matching.

Question 11

Which of the following is used in the preparation of recombinant DNA?

Accepted Answer

A) RNA polymerase 
B) restriction enzyme 
C) repressor protein 
D) enzyme induction 
E) DNA polymerase 
A) RNA polymerase 
B) restriction enzyme 
C) repressor protein 
D) enzyme induction 
E) DNA polymerase

Question 12

Which of the following is a section of mRNA produced from the DNA template below?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 13

In the study of genetics, the abbreviation PCR refers to

Accepted Answer

A) protein combination and replication. 
B) purine coded ribose. 
C) pyrimidine complement restriction. 
D) polymerase chain reaction. 
E) purine chain repression. 
A) protein combination and replication. 
B) purine coded ribose. 
C) pyrimidine complement restriction. 
D) polymerase chain reaction. 
E) purine chain repression.

Question 14

A DNA template having the base sequence   would produce a mRNA with a base sequence of

Accepted Answer

A)    
B)    
C)    
D)    
E)     
A)    
B)    
C)    
D)    
E)

Question 15

Which of the following is a section of mRNA produced from the DNA template below?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 16

What is the process in which the DNA double helix unfolds, and each strand serves as a template for the synthesis of a new strand?

Accepted Answer

A) transcription 
B) translation 
C) complementation 
D) restriction 
E) replication 
A) transcription 
B) translation 
C) complementation 
D) restriction 
E) replication

Question 17

In the synthesis of mRNA, an adenine in the DNA pairs with

Accepted Answer

A) adenine. 
B) uracil. 
C) cytosine. 
D) guanine. 
E) thymine. 
A) adenine. 
B) uracil. 
C) cytosine. 
D) guanine. 
E) thymine.

Question 18

When DNA replicates, a guanine forms a base pair with

Accepted Answer

A) uracil. 
B) cytosine. 
C) guanine. 
D) adenine. 
E) thymine. 
A) uracil. 
B) cytosine. 
C) guanine. 
D) adenine. 
E) thymine.

Question 19

The two strands of the double helix of DNA are held together by

Accepted Answer

A) dipole-dipole interactions. 
B) ionic bonds. 
C) sugar-to-phosphate bonds. 
D) hydrogen bonds. 
E) covalent bonds. 
A) dipole-dipole interactions. 
B) ionic bonds. 
C) sugar-to-phosphate bonds. 
D) hydrogen bonds. 
E) covalent bonds.

Question 20

Small particles, with 3 to 200 genes, that cannot replicate without a host cell are called

Accepted Answer

A) plasmids. 
B) recombinant DNAs. 
C) bacteria. 
D) viruses. 
E) tumors. 
A) plasmids. 
B) recombinant DNAs. 
C) bacteria. 
D) viruses. 
E) tumors.

Exam 21: Nucleic Acids and Protein Synthesis

Which of the following cannot be found in DNA?

One therapeutic product now available due to recombinant DNA technology is

The nucleotides in the backbone of DNA are held together by

Which of the following is NOT a step in DNA replication?

The anticodon of UAG is

Which one of these base pairs is found in RNA?

Some sections of a DNA molecule do not code for protein synthesis. These segments are called

Which of the following can be found in DNA?

Mutations are the result of

When DNA duplicates itself, the correct placement of the nucleotides is accomplished by

Which of the following is used in the preparation of recombinant DNA?

Which of the following is a section of mRNA produced from the DNA template below?

In the study of genetics, the abbreviation PCR refers to

A DNA template having the base sequence would produce a mRNA with a base sequence of

Which of the following is a section of mRNA produced from the DNA template below?

What is the process in which the DNA double helix unfolds, and each strand serves as a template for the synthesis of a new strand?

In the synthesis of mRNA, an adenine in the DNA pairs with

When DNA replicates, a guanine forms a base pair with

The two strands of the double helix of DNA are held together by

Small particles, with 3 to 200 genes, that cannot replicate without a host cell are called

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