Question 1

The intermediate stage that the group II introns pass through while undergoing self-splicing is called the _____.

Accepted Answer

A) langolier 
B) lanyard 
C) lariat 
D) lasso 
A) langolier 
B) lanyard 
C) lariat 
D) lasso

Question 2

Modifications to the nucleotides of pre-rRNAs are made _________.

Accepted Answer

A) after translation 
B) before transcription 
C) after transcription 
D) after mitosis 
E) before mitosis 
A) after translation 
B) before transcription 
C) after transcription 
D) after mitosis 
E) before mitosis

Question 3

What chemical group is attached to the first methionine in a polypeptide chain in prokaryotes?

Accepted Answer

A) a formyl group 
B) a methyl group 
C) an acetyl group 
D) a phosphate group 
E) a glutamyl group 
A) a formyl group 
B) a methyl group 
C) an acetyl group 
D) a phosphate group 
E) a glutamyl group

Question 4

Which of the following is a correct statement about the CRISPR-cas9 system?

Accepted Answer

A) The CRISPR-cas9 system is only capable of DNA insertions. 
B) The CRISPR-cas9 system was originally discovered in eukaryotes. 
C) The CRISPR-cas9 system protects bacteria from viral infection 
D) The CRISPR-cas9 system randomly cuts DNA at any sequence location 
A) The CRISPR-cas9 system is only capable of DNA insertions. 
B) The CRISPR-cas9 system was originally discovered in eukaryotes. 
C) The CRISPR-cas9 system protects bacteria from viral infection 
D) The CRISPR-cas9 system randomly cuts DNA at any sequence location

Question 5

Technology which uses DNA for the engineering of nanostructures and new materials is referred to as ______________.

Accepted Answer

A) DNA sudoku 
B) DNA mah-jong 
C) DNA origami 
D) DNA jig-saw 
A) DNA sudoku 
B) DNA mah-jong 
C) DNA origami 
D) DNA jig-saw

Question 6

In what direction is an mRNA molecule synthesized?

Accepted Answer

A) 3' to 5' direction 
B) 5' to 3' direction 
C) N-terminal to C-terminal direction 
D) C-terminal to N-terminal direction 
E) N-terminal to 3' direction 
A) 3' to 5' direction 
B) 5' to 3' direction 
C) N-terminal to C-terminal direction 
D) C-terminal to N-terminal direction 
E) N-terminal to 3' direction

Question 7

What is the supposed function of the loops in tRNAs?

Accepted Answer

A) They bind to amino acids. 
B) They bind to other tRNAs. 
C) They bind to mRNAs. 
D) They serve as potential recognition sites for various proteins. 
E) They increase the buoyant density of tRNAs. 
A) They bind to amino acids. 
B) They bind to other tRNAs. 
C) They bind to mRNAs. 
D) They serve as potential recognition sites for various proteins. 
E) They increase the buoyant density of tRNAs.

Question 8

DNA origami technology relies on the use of _________________. (Select all correct choices)

Accepted Answer

A) circles of dsDNA 
B) circles of ssDNA 
C) linear strands of ssDNA 
D) linear strands of dsDNA 
A) circles of dsDNA 
B) circles of ssDNA 
C) linear strands of ssDNA 
D) linear strands of dsDNA

Question 9

The combination of DNA, RNA core enzyme and $\sigma$ factor is called _____.

Accepted Answer

A) an open complex 
B) a transcription unit 
C) a translation unit 
D) a coding unit 
E) a transcriptosome 
A) an open complex 
B) a transcription unit 
C) a translation unit 
D) a coding unit 
E) a transcriptosome

Question 10

It is generally accepted that vertebrates do not utilize RNAi as a defense against viruses for what reason?

Accepted Answer

A) Vertebrates have no serious viral infections. 
B) Vertebrate cell membranes resist viral attachment. 
C) Vertebrate cell walls resist viral attachment. 
D) Vertebrates rely instead on a well-developed immune system. 
A) Vertebrates have no serious viral infections. 
B) Vertebrate cell membranes resist viral attachment. 
C) Vertebrate cell walls resist viral attachment. 
D) Vertebrates rely instead on a well-developed immune system.

Question 11

Who was the first to report that certain rare inherited diseases were caused by the absence of specific enzymes?

Accepted Answer

A) Charles Darwin 
B) Archibald Garrod 
C) George Beadle 
D) Vernon Ingram 
E) James Watson 
A) Charles Darwin 
B) Archibald Garrod 
C) George Beadle 
D) Vernon Ingram 
E) James Watson

Question 12

The initiator tRNA enters the 30S ribosomal subunit at the __________ during prokaryotic protein synthesis.

Accepted Answer

A) A site 
B) P site 
C) E site 
D) Q site 
E) 50S attachment point 
A) A site 
B) P site 
C) E site 
D) Q site 
E) 50S attachment point

Question 13

Potential applications of DNA origami technology include: (Select all correct choices)

Accepted Answer

A) design of antiviral medications 
B) creation of novel nanocircuitry for electronics 
C) CRISPR-cas9 applications 
D) designing small containers to study protein-protein motor interactions 
A) design of antiviral medications 
B) creation of novel nanocircuitry for electronics 
C) CRISPR-cas9 applications 
D) designing small containers to study protein-protein motor interactions

Question 14

What is the name of the RNA-degrading machine that consists of nearly a dozen different exonucleases and is thought to execute some of the enzymatic cleavages that occur during pre-rRNA processing?

Accepted Answer

A) endosome 
B) exosome 
C) nucleosome 
D) heliosome 
E) degradosome 
A) endosome 
B) exosome 
C) nucleosome 
D) heliosome 
E) degradosome

Question 15

A "sense" RNA for a particular targeted protein is ___________.

Accepted Answer

A) an RNA having a sequence complementary to the mRNA of the targeted protein 
B) the sequence of the mRNA that encoded the protein being targeted 
C) a small RNA with a clover shape 
D) an RNA always possessing catalytic activity 
E) an RNA generally found in ribosomes that forges the peptide bond 
A) an RNA having a sequence complementary to the mRNA of the targeted protein 
B) the sequence of the mRNA that encoded the protein being targeted 
C) a small RNA with a clover shape 
D) an RNA always possessing catalytic activity 
E) an RNA generally found in ribosomes that forges the peptide bond

Question 16

What is the presumed function of the siRNAs produced by mammalian oocytes?

Accepted Answer

A) They aid in fertilization. 
B) They defend against the movement of transposable elements in the female germ cell line. 
C) They defend against the movement of chromosomes in the female germ cell line. 
D) They play a role in the regulation of meiosis. 
E) They play a role in the regulation of oogenesis. 
A) They aid in fertilization. 
B) They defend against the movement of transposable elements in the female germ cell line. 
C) They defend against the movement of chromosomes in the female germ cell line. 
D) They play a role in the regulation of meiosis. 
E) They play a role in the regulation of oogenesis.

Question 17

Which enzyme is responsible for synthesizing hnRNAs?

Accepted Answer

A) RNA polymerase I 
B) RNA polymerase II 
C) RNA polymerase III 
D) reverse transcriptase 
E) general transcription factors 
A) RNA polymerase I 
B) RNA polymerase II 
C) RNA polymerase III 
D) reverse transcriptase 
E) general transcription factors

Question 18

What is the maximum number of tRNAs that a cell would be likely to have?

Accepted Answer

A) 20 
B) 3 
C) 64 
D) 61 
E) 21 
A) 20 
B) 3 
C) 64 
D) 61 
E) 21

Question 19

The mechanical changes that ribosomes undergo are driven by energy from ______.

Accepted Answer

A) GTP hydrolysis 
B) ATP hydrolysis 
C) ADP hydrolysis 
D) an electrochemical gradient 
E) a concentration gradient 
A) GTP hydrolysis 
B) ATP hydrolysis 
C) ADP hydrolysis 
D) an electrochemical gradient 
E) a concentration gradient

Question 20

How do the unusual bases found in the loops in tRNA influence tRNA structure?

Accepted Answer

A) They disrupt H bond formation in the loop regions, causing the loops to form. 
B) They bind to proteins that hold the loops open. 
C) They disrupt hydrophobic interactions in the loop regions, causing the loops to form. 
D) They prevent van der Waals interactions which prevent loop formation. 
E) They disrupt H bond formation which causes complementary pairing in the stem regions. 
A) They disrupt H bond formation in the loop regions, causing the loops to form. 
B) They bind to proteins that hold the loops open. 
C) They disrupt hydrophobic interactions in the loop regions, causing the loops to form. 
D) They prevent van der Waals interactions which prevent loop formation. 
E) They disrupt H bond formation which causes complementary pairing in the stem regions.

The intermediate stage that the group II introns pass through while undergoing self-splicing is called the _____.

Modifications to the nucleotides of pre-rRNAs are made _________.

What chemical group is attached to the first methionine in a polypeptide chain in prokaryotes?

Which of the following is a correct statement about the CRISPR-cas9 system?

Technology which uses DNA for the engineering of nanostructures and new materials is referred to as ______________.

In what direction is an mRNA molecule synthesized?

What is the supposed function of the loops in tRNAs?

DNA origami technology relies on the use of _________________. (Select all correct choices)

The combination of DNA, RNA core enzyme and $\sigma$ factor is called _____.

It is generally accepted that vertebrates do not utilize RNAi as a defense against viruses for what reason?

Who was the first to report that certain rare inherited diseases were caused by the absence of specific enzymes?

The initiator tRNA enters the 30S ribosomal subunit at the __________ during prokaryotic protein synthesis.

Potential applications of DNA origami technology include: (Select all correct choices)

What is the name of the RNA-degrading machine that consists of nearly a dozen different exonucleases and is thought to execute some of the enzymatic cleavages that occur during pre-rRNA processing?

A "sense" RNA for a particular targeted protein is ___________.

What is the presumed function of the siRNAs produced by mammalian oocytes?

Which enzyme is responsible for synthesizing hnRNAs?

What is the maximum number of tRNAs that a cell would be likely to have?

The mechanical changes that ribosomes undergo are driven by energy from ______.

How do the unusual bases found in the loops in tRNA influence tRNA structure?

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics, Enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Aerobic Respiration and the Mitochondrion

Photosynthesis and the Chloroplast

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, Function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

The Nature of the Gene and the Genome

Control of Gene Expression

Dna Replication and Repair

Cellular Reproduction

Cell Signaling and Signal Transduction: Communication Between Cells

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters

Exam 11: Gene Expression: From Transcription to Translation

The intermediate stage that the group II introns pass through while undergoing self-splicing is called the _____.

Modifications to the nucleotides of pre-rRNAs are made _________.

What chemical group is attached to the first methionine in a polypeptide chain in prokaryotes?

Which of the following is a correct statement about the CRISPR-cas9 system?

Technology which uses DNA for the engineering of nanostructures and new materials is referred to as ______________.

In what direction is an mRNA molecule synthesized?

What is the supposed function of the loops in tRNAs?

DNA origami technology relies on the use of _________________. (Select all correct choices)

The combination of DNA, RNA core enzyme and σ\sigmaσ factor is called _____.

It is generally accepted that vertebrates do not utilize RNAi as a defense against viruses for what reason?

Who was the first to report that certain rare inherited diseases were caused by the absence of specific enzymes?

The initiator tRNA enters the 30S ribosomal subunit at the __________ during prokaryotic protein synthesis.

Potential applications of DNA origami technology include: (Select all correct choices)

What is the name of the RNA-degrading machine that consists of nearly a dozen different exonucleases and is thought to execute some of the enzymatic cleavages that occur during pre-rRNA processing?

A "sense" RNA for a particular targeted protein is ___________.

What is the presumed function of the siRNAs produced by mammalian oocytes?

Which enzyme is responsible for synthesizing hnRNAs?

What is the maximum number of tRNAs that a cell would be likely to have?

The mechanical changes that ribosomes undergo are driven by energy from ______.

How do the unusual bases found in the loops in tRNA influence tRNA structure?

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics, Enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Aerobic Respiration and the Mitochondrion

Photosynthesis and the Chloroplast

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, Function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

The Nature of the Gene and the Genome

Control of Gene Expression

Dna Replication and Repair

Cellular Reproduction

Cell Signaling and Signal Transduction: Communication Between Cells

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters

The combination of DNA, RNA core enzyme and $\sigma$ factor is called _____.