Question 1

Outline the role of RNA in the synthesis of polypeptides.

Accepted Answer

RNA, or ribonucleic acid, plays a crucia

Question 2

The secondary level of protein structure involves

Accepted Answer

A)  folding of the primary structure upon itself. 
B)  the number of peptide bonds in a polypeptide chain. 
C)  substitutions in the amino acid sequence. 
D)  interactions with other polypeptide chains. 
E)  none of these. 
A)  folding of the primary structure upon itself. 
B)  the number of peptide bonds in a polypeptide chain. 
C)  substitutions in the amino acid sequence. 
D)  interactions with other polypeptide chains. 
E)  none of these.

Question 3

Discuss the meaning of the following two statements and determine whether each one is true or false:
(1) One amino acid can be coded for by more than one codon.
(2) One codon can be coded for by more than one amino acid.

Accepted Answer

(1) One amino acid can be coded for by m

Question 4

All amino acids are characterized by

Accepted Answer

A)  an amino group and a peptide bond. 
B)  a carboxyl group and a peptide bond. 
C)  the presence of two R groups. 
D)  an amino group and a carboxyl group. 
E)  none of these. 
A)  an amino group and a peptide bond. 
B)  a carboxyl group and a peptide bond. 
C)  the presence of two R groups. 
D)  an amino group and a carboxyl group. 
E)  none of these.

Question 5

Which one of the following is NOT a component of the translation initiation complex?

Accepted Answer

A)  Small ribosome subunit. 
B)  Large ribosome subunit. 
C)  mRNA. 
D)  tRNA. 
E)  All of these are components of the initiation complex. 
A)  Small ribosome subunit. 
B)  Large ribosome subunit. 
C)  mRNA. 
D)  tRNA. 
E)  All of these are components of the initiation complex.

Question 6

Bovine spongiform encephalopathy is caused by a _____________.

Accepted Answer

A)  bacterium 
B)  fungus 
C)  virus 
D)  protein 
E)  lipid 
A)  bacterium 
B)  fungus 
C)  virus 
D)  protein 
E)  lipid

Question 7

In translation, unlike DNA replication, the base-pairing rule is not required.

Accepted Answer

A) True 
 B)False

Question 8

Tetracyclines interfere with the process of ____________.

Accepted Answer

A)  DNA replication 
B)  transcription 
C)  translation 
D)  protein folding 
E)  transformation 
A)  DNA replication 
B)  transcription 
C)  translation 
D)  protein folding 
E)  transformation

Question 9

Describe what happens during the initiation, elongation, and termination phases of translation.

Accepted Answer

During the initiation phase of translati

Question 10

Two tRNA molecules occupy the P and A sites in a ribosome. The amino acids they carry are joined by a peptide bond. What is the very next event that occurs?

Accepted Answer

A)  The tRNA in the P site detaches and leaves the ribosome. 
B)  A third tRNA enters the ribosome. 
C)  The ribosome moves one codon down the mRNA. 
D)  The large subunit leaves the ribosome. 
E)  A new amino acid is joined to the tRNA in the P site. 
A)  The tRNA in the P site detaches and leaves the ribosome. 
B)  A third tRNA enters the ribosome. 
C)  The ribosome moves one codon down the mRNA. 
D)  The large subunit leaves the ribosome. 
E)  A new amino acid is joined to the tRNA in the P site.

Question 11

The genetic code is described as "universal." What does that mean, and why is this very significant to our understanding of life on Earth?

Accepted Answer

The term "universal" in the context of t

Question 12

How is the order of code words in a DNA molecule related to the order of codons in mRNA and the order of amino acids in a polypeptide chain? Use 5' and 3' designations for the nucleic acids and amino and carboxyl ends to designate the polypeptide chains.

Accepted Answer

The order of code words in a DNA molecul

Question 13

Post-translational modification of polypeptides includes

Accepted Answer

A)  attaching lipids to the polypeptides. 
B)  attaching sugar to the polypeptides. 
C)  chemically changing some amino acids. 
D)  removal of some amino acids. 
E)  all of these. 
A)  attaching lipids to the polypeptides. 
B)  attaching sugar to the polypeptides. 
C)  chemically changing some amino acids. 
D)  removal of some amino acids. 
E)  all of these.

Question 14

RNA polymerase attaches to regions just outside genes called ____________________.

Accepted Answer

The answer of RNA polymerase attaches to regions just outside...

Question 15

Transcription and translation share the three steps of initiation, elongation, and termination.

Accepted Answer

A) True 
 B)False

Question 16

The antibiotic erythromycin works by inhibiting the movement of ________ along the _________.

Accepted Answer

The answer of The antibiotic erythromycin works by inhibiting the...

Question 17

Describe the flow of information in the cell.

Accepted Answer

The flow of information in a cell involv

Question 18

There are three tRNAs with anticodons complementary to stop codons.

Accepted Answer

A) True 
 B)False

Question 19

A string of 30 to 100 adenine nucleotides

Accepted Answer

A)  is found in the promoter region of all genes. 
B)  is the sequence of which introns are composed. 
C)  is found at the 3'-end of all tRNAs. 
D)  is found in the terminator region of all genes. 
E)  is added to the 3'-end on mRNA during RNA processing. 
A)  is found in the promoter region of all genes. 
B)  is the sequence of which introns are composed. 
C)  is found at the 3'-end of all tRNAs. 
D)  is found in the terminator region of all genes. 
E)  is added to the 3'-end on mRNA during RNA processing.

Question 20

The shape of a protein is ultimately determined by

Accepted Answer

A)  the interaction of R groups. 
B)  interaction with other polypeptide chains. 
C)  the amino acid sequence. 
D)  bonds formed with other proteins. 
E)  none of these. 
A)  the interaction of R groups. 
B)  interaction with other polypeptide chains. 
C)  the amino acid sequence. 
D)  bonds formed with other proteins. 
E)  none of these.

Outline the role of RNA in the synthesis of polypeptides.

The secondary level of protein structure involves

Discuss the meaning of the following two statements and determine whether each one is true or false: (1) One amino acid can be coded for by more than one codon. (2) One codon can be coded for by more than one amino acid.

All amino acids are characterized by

Which one of the following is NOT a component of the translation initiation complex?

Bovine spongiform encephalopathy is caused by a _____________.

In translation, unlike DNA replication, the base-pairing rule is not required.

Tetracyclines interfere with the process of ____________.

Describe what happens during the initiation, elongation, and termination phases of translation.

Two tRNA molecules occupy the P and A sites in a ribosome. The amino acids they carry are joined by a peptide bond. What is the very next event that occurs?

The genetic code is described as "universal." What does that mean, and why is this very significant to our understanding of life on Earth?

How is the order of code words in a DNA molecule related to the order of codons in mRNA and the order of amino acids in a polypeptide chain? Use 5' and 3' designations for the nucleic acids and amino and carboxyl ends to designate the polypeptide chains.

Post-translational modification of polypeptides includes

RNA polymerase attaches to regions just outside genes called ____________________.

Transcription and translation share the three steps of initiation, elongation, and termination.

The antibiotic erythromycin works by inhibiting the movement of along the _.

Describe the flow of information in the cell.

There are three tRNAs with anticodons complementary to stop codons.

A string of 30 to 100 adenine nucleotides

The shape of a protein is ultimately determined by

A Perspective on Human Genetics

Cells and Cell Division

Transmission of Genes From Generation to Generation

Pedigree Analysis in Human Genetics

Complex Patterns of Inheritance

Cytogenetics: Karyotypes and Chromosome Aberrations

Development and Sex Determination

DNA Structure and Chromosomal Organization

From Proteins to Phenotypes

Mutation: the Source of Genetic Variation

Genes and Cancer

An Introduction to Genetic Technology

Biotechnology and Society

Genomes and Genomics

Reproductive Technology, Genetic Testing, and Gene Therapy

Genes and the Immune System

Genetics of Behavior

Population Genetics and Human Evolution

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Exam 9: Gene Expression: From Genes to Proteins

Outline the role of RNA in the synthesis of polypeptides.

The secondary level of protein structure involves

Discuss the meaning of the following two statements and determine whether each one is true or false: (1) One amino acid can be coded for by more than one codon. (2) One codon can be coded for by more than one amino acid.

All amino acids are characterized by

Which one of the following is NOT a component of the translation initiation complex?

Bovine spongiform encephalopathy is caused by a _____________.

In translation, unlike DNA replication, the base-pairing rule is not required.

Tetracyclines interfere with the process of ____________.

Describe what happens during the initiation, elongation, and termination phases of translation.

Two tRNA molecules occupy the P and A sites in a ribosome. The amino acids they carry are joined by a peptide bond. What is the very next event that occurs?

The genetic code is described as "universal." What does that mean, and why is this very significant to our understanding of life on Earth?

How is the order of code words in a DNA molecule related to the order of codons in mRNA and the order of amino acids in a polypeptide chain? Use 5' and 3' designations for the nucleic acids and amino and carboxyl ends to designate the polypeptide chains.

Post-translational modification of polypeptides includes

RNA polymerase attaches to regions just outside genes called ____________________.

Transcription and translation share the three steps of initiation, elongation, and termination.

The antibiotic erythromycin works by inhibiting the movement of ________ along the _________.

Describe the flow of information in the cell.

There are three tRNAs with anticodons complementary to stop codons.

A string of 30 to 100 adenine nucleotides

The shape of a protein is ultimately determined by

A Perspective on Human Genetics

Cells and Cell Division

Transmission of Genes From Generation to Generation

Pedigree Analysis in Human Genetics

Complex Patterns of Inheritance

Cytogenetics: Karyotypes and Chromosome Aberrations

Development and Sex Determination

DNA Structure and Chromosomal Organization

From Proteins to Phenotypes

Mutation: the Source of Genetic Variation

Genes and Cancer

An Introduction to Genetic Technology

Biotechnology and Society

Genomes and Genomics

Reproductive Technology, Genetic Testing, and Gene Therapy

Genes and the Immune System

Genetics of Behavior

Population Genetics and Human Evolution

Filters

The antibiotic erythromycin works by inhibiting the movement of along the _.