Question 1

A commonly known nucleotide is adenosine 3',5'-phosphate (cAMP).What is the structure of cAMP?

Accepted Answer

The answer of A commonly known nucleotide is adenosine 3',5'-phosphate...

Question 2

Which of the following is true about tRNA?

Accepted Answer

A) All tRNAs have a CCG sequence at the 3'-end. 
B) All tRNAs have a CCG sequence at the 5'-end. 
C) All tRNAs have a CCA sequence at the 5'-end. 
D) All tRNAs have a CCA sequence at the 3'-end. 
E) All tRNAs have a CAC sequence at the 3'-end. 
A) All tRNAs have a CCG sequence at the 3'-end. 
B) All tRNAs have a CCG sequence at the 5'-end. 
C) All tRNAs have a CCA sequence at the 5'-end. 
D) All tRNAs have a CCA sequence at the 3'-end. 
E) All tRNAs have a CAC sequence at the 3'-end.

Question 3

What is a nucleotide? Give an example.

Accepted Answer

A nucleotide is a nucleoside with one of

Question 4

How many hydrogen bonds exist between the cytosine/guanine base pairs?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 5

What is the most favored reaction when an amino acid and ATP react together?

Accepted Answer

A) nucleophilic attack on a-phosphorus 
B) nucleophilic attack on b-phosphorus 
C) nucleophilic attack on g-phosphorus 
D) nucleophilic attack on the NH2 of adenosine 
E) nucleophilic attack on the aromatic nitrogen of adenosine 
A) nucleophilic attack on a-phosphorus 
B) nucleophilic attack on b-phosphorus 
C) nucleophilic attack on g-phosphorus 
D) nucleophilic attack on the NH2 of adenosine 
E) nucleophilic attack on the aromatic nitrogen of adenosine

Question 6

Draw the structure of guanosine.

Accepted Answer

The answer of Draw the structure of guanosine....

Question 7

The antiviral drug,cytarabine is incorporated into the DNA in place of which nucleobase?

Accepted Answer

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

Question 8

Which of the following statements is not true about RNA?

Accepted Answer

A) It is single stranded. 
B) It is smaller than DNA. 
C) It has fewer base pairs than DNA. 
D) It exists exclusively in the nucleus of the cell. 
E) There are three kinds: rRNA,mRNA,and tRNA. 
A) It is single stranded. 
B) It is smaller than DNA. 
C) It has fewer base pairs than DNA. 
D) It exists exclusively in the nucleus of the cell. 
E) There are three kinds: rRNA,mRNA,and tRNA.

Question 9

For what compound is ATP an abbreviation?

Accepted Answer

A) adenine triphosphate 
B) adenosine tetraphosphate 
C) adenine tetraphosphate 
D) adenosine triphosphate 
E) adenine triphosphoric acid 
A) adenine triphosphate 
B) adenosine tetraphosphate 
C) adenine tetraphosphate 
D) adenosine triphosphate 
E) adenine triphosphoric acid

Question 10

The conversion of cytosine to uracil is called

Accepted Answer

A) hydrolysis 
B) elimination 
C) reduction 
D) oxidation 
E) deamination 
A) hydrolysis 
B) elimination 
C) reduction 
D) oxidation 
E) deamination

Question 11

What are stacking interactions in DNA and what purpose do they serve?

Accepted Answer

Stacking interactions are weak attractiv

Question 12

Which of the following statements best explains the source of energy behind the ATP molecule?

Accepted Answer

A) the energy released when a phosphoanhydride bond of ATP is broken 
B) the energy released when adenosine binds to the phosphate 
C) the energy released when ribose binds to the phosphate 
D) the energy released when adenine binds to ribose 
E) the energy released when ATP is reduced 
A) the energy released when a phosphoanhydride bond of ATP is broken 
B) the energy released when adenosine binds to the phosphate 
C) the energy released when ribose binds to the phosphate 
D) the energy released when adenine binds to ribose 
E) the energy released when ATP is reduced

Question 13

All tRNAs have ________ at the 3'-end.

Accepted Answer

A) CCA 
B) UUC 
C) GCC 
D) CAG 
E) GGA 
A) CCA 
B) UUC 
C) GCC 
D) CAG 
E) GGA

Question 14

Propose a mechanism for the formation of cyclic AMP from ATP.

Accepted Answer

The answer of Propose a mechanism for the formation of...

Exam 26: The Chemistry of the Nucleic Acids

A commonly known nucleotide is adenosine 3',5'-phosphate (cAMP).What is the structure of cAMP?

Which of the following is true about tRNA?

What is a nucleotide? Give an example.

How many hydrogen bonds exist between the cytosine/guanine base pairs?

What is the most favored reaction when an amino acid and ATP react together?

Draw the structure of guanosine.

The antiviral drug,cytarabine is incorporated into the DNA in place of which nucleobase?

Which of the following statements is not true about RNA?

For what compound is ATP an abbreviation?

The conversion of cytosine to uracil is called

What are stacking interactions in DNA and what purpose do they serve?

Which of the following statements best explains the source of energy behind the ATP molecule?

All tRNAs have ________ at the 3'-end.

Propose a mechanism for the formation of cyclic AMP from ATP.

Remembering General Chemistry: Electronic Structure and Bonding

Acids and Bases: Central to Understanding Organic Chemistry

An Introduction to Organic Compounds: Nomenclature, physical Properties, and Structure

Isomers: the Arrangement of Atoms in Space

Alkenes: Structure,nomenclature,and an Introduction to Reactivity - Thermodynamics and Kinetics

The Reactions of Alkenes - the Stereochemistry of Addition Reactions

The Reactions of Alkynes - Introduction to Multistep Synthesis

Delocalized Electrons: Their Effect on Stability, pka, and the Products of a Reaction - Aromaticity and Electronic Effects: an Introduction to the Reactions of Benzene

Substitution and Elimination Reactions of Alkyl Halides

Reactions of Alcohols, ethers, epoxides, amines and Sulfur-Containing Compounds

Organometallic Compounds

Radicals

Mass Spectrometry,infrared Spectroscopy,and Uvvis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions of Aldehydes and Ketones

Reactions at the Α-Carbon

Reactions of Benzene and Substituted Benzenes

More About Amines - Reactions of Heterocylic Compounds

The Organic Chemistry of Carbohydrates

Amino Acids,peptides,and Proteins

Catalysis in Organic Reactions and in Enzymatic Reactions

The Organic Chemistry of the Coenzymes, compounds Derived From Vitamins

The Organic Chemistry of the Metabolic Pathways

The Organic Chemistry of Lipids

Synthetic Polymers

Pericyclic Reactions

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