Question 1

Identify the given structure. ​

Accepted Answer

A)  Guanine-uracil 
B)  Guanine-cytosine 
C)  Thymine-uracil 
D)  Thymine-adenine 
A)  Guanine-uracil 
B)  Guanine-cytosine 
C)  Thymine-uracil 
D)  Thymine-adenine

Question 2

A double-stranded DNA molecule that contains 22%, on a mole basis, T must also contain ___% G.

Accepted Answer

The answer of A double-stranded DNA molecule that contains 22%,...

Question 3

Which of the following is a definition of messenger RNA (mRNA)?

Accepted Answer

A)  RNA found in the ribosome, the site in cells where synthesis of proteins takes place 
B)  RNA which carries a specific amino acid to the site of protein synthesis 
C)  RNA which has coded genetic information 
D)  RNA which signals cell death 
A)  RNA found in the ribosome, the site in cells where synthesis of proteins takes place 
B)  RNA which carries a specific amino acid to the site of protein synthesis 
C)  RNA which has coded genetic information 
D)  RNA which signals cell death

Question 4

Number each position in the ribose below according to the normal convention.

Accepted Answer

The answer of Number each position in the ribose below...

Question 5

What is the approximate length of a complete turn of a double helix of DNA?

Accepted Answer

A)  340 pm 
B)  800 pm 
C)  2000 pm 
D)  3400 pm 
A)  340 pm 
B)  800 pm 
C)  2000 pm 
D)  3400 pm

Question 6

What tetrapeptide is coded by the following sequence of mRNA? 5'-AUG-GUA-AUG-UUG-3'

Accepted Answer

A)  Met-Val-Met-Leu 
B)  Ala-Val- Leu-Met 
C)  Met-Val-Ala-Leu 
D)  Ala-Ala-Met-Leu 
A)  Met-Val-Met-Leu 
B)  Ala-Val- Leu-Met 
C)  Met-Val-Ala-Leu 
D)  Ala-Ala-Met-Leu

Question 7

Provide the structure of guanine, a heterocyclic base found in DNA.

Accepted Answer

The answer of Provide the structure of guanine, a heterocyclic...

Question 8

The G-C base pair is the weaker than the A-T base pair as it has two hydrogen bonds whereas the A-T base pair has three.

Accepted Answer

A) True 
 B)False

Question 9

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term.

-_____ is a pyrimidine nucleoside.

Accepted Answer

A) Sanger dideoxy method 
B) GAUCGUAAA 
C) Watson-Crick 
D) translation 
E)  
F)  
G)transcription
H)Maxam-Gilbert method
I)AUGGCUGAG
J)replication
K) 
L)  
M)AGATCGCTC 
A) Sanger dideoxy method 
B) GAUCGUAAA 
C) Watson-Crick 
D) translation 
E)  
F)  
G)transcription
H)Maxam-Gilbert method
I)AUGGCUGAG
J)replication
K) 
L)  
M)AGATCGCTC

Question 10

The following structures is a pyrimidine.

Accepted Answer

A) True 
 B)False

Question 11

If ranked for largest to smallest, the correct order of DNA, mRNA, and tRNA would be DNA > mRNA > tRNA.

Accepted Answer

A) True 
 B)False

Question 12

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term.

-_____ is a RNA base sequence with guanine at the 3' end.
_____ is a pyrimidine nucleoside.

Accepted Answer

A) Sanger dideoxy method 
B) GAUCGUAAA 
C) Watson-Crick 
D) translation 
E)  
F)  
G)transcription
H)Maxam-Gilbert method
I)AUGGCUGAG
J)replication
K) 
L)  
M)AGATCGCTC 
A) Sanger dideoxy method 
B) GAUCGUAAA 
C) Watson-Crick 
D) translation 
E)  
F)  
G)transcription
H)Maxam-Gilbert method
I)AUGGCUGAG
J)replication
K) 
L)  
M)AGATCGCTC

Question 13

Provide the structure of adenosine, a nucleoside.

Accepted Answer

The answer of Provide the structure of adenosine, a nucleoside....

Question 14

Relative to the secondary structure of DNA, there is no restriction on the sequence of bases along a polynucleotide chain. The exact sequence carries the genetic information.

Accepted Answer

A) True 
 B)False

Question 15

EcoRI is a restriction endonuclease that recognizes the hexanucleotide sequence, GAATTC. Identify the fragments cleaved by EcoRI in the given DNA strand. ? 5'---g-a-a-t-t-c-a-t-t-a---3'$\overset{\text { ECORI }}{\longrightarrow} $?

Accepted Answer

A) 
 5'---G + 5'-A-A-T-T-C-A-T-T-A---3' 
B) 
5'---G-A+5'-A-T-T-C-A-T-T-A---3' 
C) 
5'---G-A-A+5'-T-T-C-A-T-T-A---3' 
D) 
5'---G-A-A-A-T+5'-T-C-A-T-T-A---3' 
A) 
 5'---G + 5'-A-A-T-T-C-A-T-T-A---3' 
B) 
5'---G-A+5'-A-T-T-C-A-T-T-A---3' 
C) 
5'---G-A-A+5'-T-T-C-A-T-T-A---3' 
D) 
5'---G-A-A-A-T+5'-T-C-A-T-T-A---3'

Question 16

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term.

-_____ is a pyrimidine nucleoside.

Accepted Answer

A) Sanger dideoxy method 
B) GAUCGUAAA 
C) Watson-Crick 
D) translation 
E)  
F)  
G)transcription
H)Maxam-Gilbert method
I)AUGGCUGAG
J)replication
K) 
L)  
M)AGATCGCTC 
A) Sanger dideoxy method 
B) GAUCGUAAA 
C) Watson-Crick 
D) translation 
E)  
F)  
G)transcription
H)Maxam-Gilbert method
I)AUGGCUGAG
J)replication
K) 
L)  
M)AGATCGCTC

Question 17

How many bases are present in each strand of a complete turn of B-DNA?

Accepted Answer

A)  3 
B)  7 
C)  10 
D)  15 
A)  3 
B)  7 
C)  10 
D)  15

Question 18

Which of the following is a pyrimidine base?

Accepted Answer

A)  guanine 
B)  adenine 
C)  thymine 
D)  triethylamine 
A)  guanine 
B)  adenine 
C)  thymine 
D)  triethylamine

Question 19

What sequence is fully complementary to the following sequence?
5'-AGTCAATTC-3'

Accepted Answer

The answer of What sequence is fully complementary to the...

Question 20

Which of the following is D-ribose?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Exam 28: Nucleic Acids

Identify the given structure. ​

A double-stranded DNA molecule that contains 22%, on a mole basis, T must also contain ___% G.

Which of the following is a definition of messenger RNA (mRNA)?

Number each position in the ribose below according to the normal convention.

What is the approximate length of a complete turn of a double helix of DNA?

What tetrapeptide is coded by the following sequence of mRNA? 5'-AUG-GUA-AUG-UUG-3'

Provide the structure of guanine, a heterocyclic base found in DNA.

The G-C base pair is the weaker than the A-T base pair as it has two hydrogen bonds whereas the A-T base pair has three.

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term. -_____ is a pyrimidine nucleoside.

The following structures is a pyrimidine.

If ranked for largest to smallest, the correct order of DNA, mRNA, and tRNA would be DNA > mRNA > tRNA.

Provide the structure of adenosine, a nucleoside.

Relative to the secondary structure of DNA, there is no restriction on the sequence of bases along a polynucleotide chain. The exact sequence carries the genetic information.

EcoRI is a restriction endonuclease that recognizes the hexanucleotide sequence, GAATTC. Identify the fragments cleaved by EcoRI in the given DNA strand. ? 5'---g-a-a-t-t-c-a-t-t-a---3' ⟶ ECORI \overset{\text { ECORI }}{\longrightarrow} ⟶ ECORI ​ ?

MATCH each of the following terms to a structure from the list below. There is only one correct answer for each question and structures may be used more than once. Place the letter of the structure in the blank to the left of the corresponding term. -_____ is a pyrimidine nucleoside.

How many bases are present in each strand of a complete turn of B-DNA?

Which of the following is a pyrimidine base?

What sequence is fully complementary to the following sequence? 5'-AGTCAATTC-3'

Which of the following is D-ribose?

Covalent Bonding and Shapes of Molecules

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Reactions of Alkenes

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Benzene and the Concept of Aromaticity

Reactions of Benzene and Its Derivatives

Amines

Catalytic Carbon-Carbon Bond Formation

Carbohydrates

Lipids

Amino Acids and Proteins

Organic Polymer Chemistry

Filters

Identify the given structure.

EcoRI is a restriction endonuclease that recognizes the hexanucleotide sequence, GAATTC. Identify the fragments cleaved by EcoRI in the given DNA strand. ? 5'---g-a-a-t-t-c-a-t-t-a---3' $\overset{\text { ECORI }}{\longrightarrow}$ ?