Question 1

Codons are base pair sequences that

Accepted Answer

A)  signal the start of DNA synthesis. 
B)  signal the end of DNA synthesis. 
C)  code for amino acids. 
D)  signal the start of RNA synthesis. 
E)  code for one or more bases in mRNA. 
A)  signal the start of DNA synthesis. 
B)  signal the end of DNA synthesis. 
C)  code for amino acids. 
D)  signal the start of RNA synthesis. 
E)  code for one or more bases in mRNA.

Question 2

The anticodon of U-A-G is

Accepted Answer

A)  A-T-C. 
B)  U-A-G. 
C)  A-A-C. 
D)  A-U-C. 
E)  G-A-U. 
A)  A-T-C. 
B)  U-A-G. 
C)  A-A-C. 
D)  A-U-C. 
E)  G-A-U.

Question 3

In the DNA double helix, a purine can only bond with a pyrimidine.

Accepted Answer

A) True 
 B)False

Question 4

Match the correct term with the statement.
-a protein that interacts with the operator gene to prevent mRNA synthesis

Accepted Answer

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

Question 5

The anticodon is

Accepted Answer

A)  identical to the codon on DNA. 
B)  complementary to the codon on DNA. 
C)  identical to the codon on mRNA. 
D)  complementary to the codon on mRNA. 
E)  complementary to the codon on tRNA. 
A)  identical to the codon on DNA. 
B)  complementary to the codon on DNA. 
C)  identical to the codon on mRNA. 
D)  complementary to the codon on mRNA. 
E)  complementary to the codon on tRNA.

Question 6

The codon is found on __________, and the anticodon is found on __________.

Accepted Answer

A)  mRNA; tRNA 
B)  tRNA; mRNA 
C)  rRNA; tRNA 
D)  ribosomes; tRNA 
E)  mRNA; rRNA 
A)  mRNA; tRNA 
B)  tRNA; mRNA 
C)  rRNA; tRNA 
D)  ribosomes; tRNA 
E)  mRNA; rRNA

Question 7

Which one of the following base pairs is found in DNA?

Accepted Answer

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

Question 8

In transcription

Accepted Answer

A)  the mRNA produced is identical to the parent DNA. 
B)  a double helix containing one parent strand and one daughter strand is produced. 
C)  uracil pairs with thymine. 
D)  both strands of the DNA are copied. 
E)  the mRNA produced is complementary to one strand of the DNA. 
A)  the mRNA produced is identical to the parent DNA. 
B)  a double helix containing one parent strand and one daughter strand is produced. 
C)  uracil pairs with thymine. 
D)  both strands of the DNA are copied. 
E)  the mRNA produced is complementary to one strand of the DNA.

Question 9

Match the correct term with the statement.
-a group of genes whose transcription is controlled by the same regulatory gene

Accepted Answer

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

Question 10

A __________ consists of a nitrogen-containing base and a sugar.

Accepted Answer

A)  nucleoside 
B)  base pair 
C)  nucleotide 
D)  complementary base 
E)  pyrimidine 
A)  nucleoside 
B)  base pair 
C)  nucleotide 
D)  complementary base 
E)  pyrimidine

Question 11

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

Accepted Answer

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

Question 12

Match the following.
-the nucleic acid that contains a single anticodon for a specific amino acid

Accepted Answer

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

Question 13

Match the type of cellular control with the description.
-When substrate is present in the cell, the structural gene produces mRNA for enzyme synthesis.

Accepted Answer

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

Question 14

Which of the following is found in RNA but not in DNA?

Accepted Answer

A)  thymine 
B)  uracil 
C)  guanine 
D)  cytosine 
E)  deoxyribose 
A)  thymine 
B)  uracil 
C)  guanine 
D)  cytosine 
E)  deoxyribose

Question 15

The base sequence of the strand of DNA complementary to the segment 5'-T-G-G-C-A-A-C-3' is:

Accepted Answer

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

Question 16

One therapeutic product now available due to recombinant DNA technology is

Accepted Answer

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

Question 17

The nucleotides in the backbone of DNA are held together by __________ bonds.

Accepted Answer

A)  hydrogen 
B)  peptide 
C)  phosphodiester 
D)  glycosidic 
E)  ionic 
A)  hydrogen 
B)  peptide 
C)  phosphodiester 
D)  glycosidic 
E)  ionic

Question 18

Which of the following will not be found in DNA?

Accepted Answer

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

Question 19

DNA differs from RNA in the sugar it contains.

Accepted Answer

A) True 
 B)False

Question 20

Match the correct term with the statement.
-the portion of the control site that regulates DNA synthesis

Accepted Answer

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

Exam 21: Nucleic Acids and Protein Synthesis

Codons are base pair sequences that

The anticodon of U-A-G is

In the DNA double helix, a purine can only bond with a pyrimidine.

Match the correct term with the statement. -a protein that interacts with the operator gene to prevent mRNA synthesis

The anticodon is

The codon is found on __________, and the anticodon is found on __________.

Which one of the following base pairs is found in DNA?

In transcription

Match the correct term with the statement. -a group of genes whose transcription is controlled by the same regulatory gene

A __________ consists of a nitrogen-containing base and a sugar.

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

Match the following. -the nucleic acid that contains a single anticodon for a specific amino acid

Match the type of cellular control with the description. -When substrate is present in the cell, the structural gene produces mRNA for enzyme synthesis.

Which of the following is found in RNA but not in DNA?

The base sequence of the strand of DNA complementary to the segment 5'-T-G-G-C-A-A-C-3' is:

One therapeutic product now available due to recombinant DNA technology is

The nucleotides in the backbone of DNA are held together by __________ bonds.

Which of the following will not be found in DNA?

DNA differs from RNA in the sugar it contains.

Match the correct term with the statement. -the portion of the control site that regulates DNA synthesis

Chemistry and Measurements

Energy and Matter

Atoms and Elements

Nuclear Chemistry

Compounds and Their Bonds

Chemical Reactions and Quantities

Gases

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Introduction to Organic Chemistry: Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Phenols, Thiols, and Ethers

Aldehydes, Ketones, and Chiral Molecules

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Amino Acids and Proteins

Enzymes and Vitamins

Metabolic Pathways for Carbohydrates

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

Filters

The codon is found on , and the anticodon is found on .