Question 1

Match the following.
-contains within the nucleus of the cell the information for the synthesis of protein

Accepted Answer

A) rRNA 
B) mRNA 
C) tRNA 
D) DNA 
A) rRNA 
B) mRNA 
C) tRNA 
D) DNA

Question 2

Match the following.
-picks up the specific amino acids for protein synthesis

Accepted Answer

A) rRNA 
B) mRNA 
C) tRNA 
D) DNA 
A) rRNA 
B) mRNA 
C) tRNA 
D) DNA

Question 3

AZT is a drug used in the treatment of colds.

Accepted Answer

A) True 
 B)False

Question 4

A nucleotide consists of only a base and a sugar.

Accepted Answer

A) True 
 B)False

Question 5

Okazaki fragments are short segments formed by DNA polymerase in the daughter DNA strand that runs in the 3' to 5' direction.

Accepted Answer

A) True 
 B)False

Question 6

The insertion of new DNA into the plasmid DNA of a bacterium produces

Accepted Answer

A)  viral DNA. 
B)  DNA fingerprints. 
C)  recombinant DNA. 
D)  ribosomes. 
E)  restriction enzymes. 
A)  viral DNA. 
B)  DNA fingerprints. 
C)  recombinant DNA. 
D)  ribosomes. 
E)  restriction enzymes.

Question 7

A DNA template having the base sequence 3'-A-G-A-T-G-A-5' would produce a mRNA with a base sequence of

Accepted Answer

A)  5'-A-G-A-T-G-A-3'. 
B)  5'-U-C-U-A-C-U-3'. 
C)  5'-T-C-T-U-C-T-3'. 
D)  5'-T-C-T-A-C-A-3'. 
E)  5'-A-C-A-U-C-A-3'. 
A)  5'-A-G-A-T-G-A-3'. 
B)  5'-U-C-U-A-C-U-3'. 
C)  5'-T-C-T-U-C-T-3'. 
D)  5'-T-C-T-A-C-A-3'. 
E)  5'-A-C-A-U-C-A-3'.

Question 8

Match the correct term with the statement.
-that portion of the gene that, when repressed, prevents mRNA synthesis

Accepted Answer

A) operon 
B) operator 
C) promotor 
D) repressor 
A) operon 
B) operator 
C) promotor 
D) repressor

Question 9

A retrovirus uses DNA as its genetic material.

Accepted Answer

A) True 
 B)False

Question 10

The result of a defective enzyme caused by a mutation in the DNA nucleotide sequence is

Accepted Answer

A)  a genetic disease. 
B)  AIDS. 
C)  HIV. 
D)  recombinant DNA. 
E)  translocation. 
A)  a genetic disease. 
B)  AIDS. 
C)  HIV. 
D)  recombinant DNA. 
E)  translocation.

Question 11

Mutations are the result of

Accepted Answer

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

Question 12

Human DNA contains many nucleotides that are not used in genes.

Accepted Answer

A) True 
 B)False

Question 13

RNA contains no phosphate.

Accepted Answer

A) True 
 B)False

Question 14

When a mutation occurs by elimination of one base in a DNA sequence, this mutation is called a

Accepted Answer

A)  frameshift mutation. 
B)  retrovirus insertion. 
C)  substitution mutation. 
D)  translocation mutation. 
E)  viral mutation. 
A)  frameshift mutation. 
B)  retrovirus insertion. 
C)  substitution mutation. 
D)  translocation mutation. 
E)  viral mutation.

Question 15

Which of the following is not a step in protein synthesis?

Accepted Answer

A)  activation of tRNA 
B)  initiation 
C)  elongation 
D)  termination 
E)  unwinding of two strands of mRNA 
A)  activation of tRNA 
B)  initiation 
C)  elongation 
D)  termination 
E)  unwinding of two strands of mRNA

Question 16

Match the type of cellular control with the description.
-The substrate induces the synthesis of its own metabolic enzymes.

Accepted Answer

A) enzyme induction 
B) enzyme repression 
A) enzyme induction 
B) enzyme repression

Question 17

Match the following.
-synthesized by the DNA to carry the genetic message to the ribosomes

Accepted Answer

A) rRNA 
B) mRNA 
C) tRNA 
D) DNA 
A) rRNA 
B) mRNA 
C) tRNA 
D) DNA

Question 18

Which one of these base pairs is found in RNA?

Accepted Answer

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

Question 19

In the study of genetics, the abbreviation PCR refers to

Accepted Answer

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

Question 20

Which of the following hold two strands of DNA in an a helix?

Accepted Answer

A)  ester linkages 
B)  disulfide linkages 
C)  peptide bonds 
D)  hydrogen bonds 
E)  glycosidic linkages 
A)  ester linkages 
B)  disulfide linkages 
C)  peptide bonds 
D)  hydrogen bonds 
E)  glycosidic linkages

Exam 21: Nucleic Acids and Protein Synthesis

Match the following. -contains within the nucleus of the cell the information for the synthesis of protein

Match the following. -picks up the specific amino acids for protein synthesis

AZT is a drug used in the treatment of colds.

A nucleotide consists of only a base and a sugar.

Okazaki fragments are short segments formed by DNA polymerase in the daughter DNA strand that runs in the 3' to 5' direction.

The insertion of new DNA into the plasmid DNA of a bacterium produces

A DNA template having the base sequence 3'-A-G-A-T-G-A-5' would produce a mRNA with a base sequence of

Match the correct term with the statement. -that portion of the gene that, when repressed, prevents mRNA synthesis

A retrovirus uses DNA as its genetic material.

The result of a defective enzyme caused by a mutation in the DNA nucleotide sequence is

Mutations are the result of

Human DNA contains many nucleotides that are not used in genes.

RNA contains no phosphate.

When a mutation occurs by elimination of one base in a DNA sequence, this mutation is called a

Which of the following is not a step in protein synthesis?

Match the type of cellular control with the description. -The substrate induces the synthesis of its own metabolic enzymes.

Match the following. -synthesized by the DNA to carry the genetic message to the ribosomes

Which one of these base pairs is found in RNA?

In the study of genetics, the abbreviation PCR refers to

Which of the following hold two strands of DNA in an a helix?

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