Question 1

A nucleotide consists of only a base and a sugar.

Accepted Answer

A) True 
 B)False

Question 2

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 3

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 4

A ________ consists of a nitrogen-containing base,a sugar,and a phosphate group.

Accepted Answer

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

Question 5

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

Question 6

The start codon is AUG.

Accepted Answer

A) True 
 B)False

Question 7

The codon UGA codes for ________.

Accepted Answer

A) Phe 
B) Tyr 
C) Start 
D) Met 
E) Stop 
A) Phe 
B) Tyr 
C) Start 
D) Met 
E) Stop

Question 8

Adenine is a purine.

Accepted Answer

A) True 
 B)False

Question 9

Down syndrome is an acquired disease,not a genetic disease.

Accepted Answer

A) True 
 B)False

Question 10

Protease inhibitors,which are effective anti-HIV drugs,________.

Accepted Answer

A) are nucleoside analogs 
B) prevent reverse transcription 
C) prevent synthesis of viral proteins 
D) prevent mRNA synthesis 
E) prevent activation of tRNA 
A) are nucleoside analogs 
B) prevent reverse transcription 
C) prevent synthesis of viral proteins 
D) prevent mRNA synthesis 
E) prevent activation of tRNA

Question 11

Match between columns
                        Premises: the nucleic acid that contains a single anticodon for a specific amino acid
the nucleic acid that contains the codons for the amino acids of a protein
the most abundant nucleic acid in the ribosomes
picks up the specific amino acids for protein synthesis
contains within the nucleus of the cell the information for the synthesis of protein
synthesized by the DNA to carry the genetic message to the ribosomes

Accepted Answer

The Answer of tRNA and DNA and rRNA and mRNA is...

Question 12

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 13

The bonds that link the base pairs in the DNA double helix are ________.

Accepted Answer

A) ionic bonds 
B) peptide bonds 
C) hydrogen bonds 
D) hydrophobic interactions 
E) ester bonds 
A) ionic bonds 
B) peptide bonds 
C) hydrogen bonds 
D) hydrophobic interactions 
E) ester bonds

Question 14

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

Accepted Answer

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

Question 15

One of the differences between DNA and RNA is the sugar it contains.

Accepted Answer

A) True 
 B)False

Question 16

When DNA replicates,a guanine forms a base pair with ________.

Accepted Answer

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

Question 17

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 18

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 19

The codon AGA codes for serine.

Accepted Answer

A) True 
 B)False

A nucleotide consists of only a base and a sugar.

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

In transcription,________.

A ________ consists of a nitrogen-containing base,a sugar,and a phosphate group.

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?

The start codon is AUG.

The codon UGA codes for ________.

Adenine is a purine.

Down syndrome is an acquired disease,not a genetic disease.

Protease inhibitors,which are effective anti-HIV drugs,________.

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

The bonds that link the base pairs in the DNA double helix are ________.

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

One of the differences between DNA and RNA is the sugar it contains.

When DNA replicates,a guanine forms a base pair with ________.

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

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

The codon AGA codes for serine.

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Exam 17: Nucleic Acids and Protein Synthesis

A nucleotide consists of only a base and a sugar.

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

In transcription,________.

A ________ consists of a nitrogen-containing base,a sugar,and a phosphate group.

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?

The start codon is AUG.

The codon UGA codes for ________.

Adenine is a purine.

Down syndrome is an acquired disease,not a genetic disease.

Protease inhibitors,which are effective anti-HIV drugs,________.

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

The bonds that link the base pairs in the DNA double helix are ________.

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

One of the differences between DNA and RNA is the sugar it contains.

When DNA replicates,a guanine forms a base pair with ________.

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

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

The codon AGA codes for serine.

Chemistry in Our Lives

Chemistry and Measurement

Matter and Energy

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Gases

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, Thiols, Ethers, Aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, Esters, Amines, and Amides

Lipids

Amino Acids, Proteins, and Enzymes

Metabolic Pathways and Energy Production

Filters