Question 1

An exon is a region of DNA that is

Accepted Answer

A)  At the end of the response element 
B)  In between response elements 
C)  Expressed 
D)  Excised in the making of mRNA 
E)  Promotes expression of the DNA 
A)  At the end of the response element 
B)  In between response elements 
C)  Expressed 
D)  Excised in the making of mRNA 
E)  Promotes expression of the DNA C

Question 2

The function of t-RNA is to

Accepted Answer

A)  Covalently link to an amino acid and also recognize and bind the codon on mRNA 
B)  Structurally stabilize ribosomes 
C)  Bind mRNA to the ribosome 
D)  Elongate the amino acid chain by creating the peptide bond 
E)  Transfer proteins into the ER 
A)  Covalently link to an amino acid and also recognize and bind the codon on mRNA 
B)  Structurally stabilize ribosomes 
C)  Bind mRNA to the ribosome 
D)  Elongate the amino acid chain by creating the peptide bond 
E)  Transfer proteins into the ER A

Question 3

Transcription requires

Accepted Answer

A)  Unraveling of DNA from the histones 
B)  Activation of DNA polymerase 
C)  Activation of RNA polymerase I 
D)  Duplication of DNA 
E)  Nucleosome formation 
A)  Unraveling of DNA from the histones 
B)  Activation of DNA polymerase 
C)  Activation of RNA polymerase I 
D)  Duplication of DNA 
E)  Nucleosome formation A

Question 4

The sequential order of binding of tRNA to the ribosome is

Accepted Answer

A)  A site, P site, E site 
B)  A site , E site, P site 
C)  E site , P site, A site 
D)  E site , A site, P site 
E)  P site , A site, E site 
A)  A site, P site, E site 
B)  A site , E site, P site 
C)  E site , P site, A site 
D)  E site , A site, P site 
E)  P site , A site, E site

Question 5

The "codon " refers to a triplet sequence of nucleotides in

Accepted Answer

A)  DNA 
B)  mRNA 
C)  tRNA 
D)  complementary DNA 
E)  rRNA 
A)  DNA 
B)  mRNA 
C)  tRNA 
D)  complementary DNA 
E)  rRNA

Question 6

A region of the DNA that is expressed is called

Accepted Answer

A)  An intron 
B)  A response element 
C)  A promoter 
D)  An exon 
E)  A spliceosome 
A)  An intron 
B)  A response element 
C)  A promoter 
D)  An exon 
E)  A spliceosome

Question 7

mRNA is made by

Accepted Answer

A)  RNA polymerase I acting on DNA 
B)  RNA polymerase II acting on DNA 
C)  RNA polymerase III acting on RNA 
D)  RNA polymerase III acting on DNA 
E)  RNA polymerase I acting on RNA 
A)  RNA polymerase I acting on DNA 
B)  RNA polymerase II acting on DNA 
C)  RNA polymerase III acting on RNA 
D)  RNA polymerase III acting on DNA 
E)  RNA polymerase I acting on RNA

Question 8

The un winding of DNA is accomplished by

Accepted Answer

A)  DNA polymerase 
B)  DNA unwinding enzyme 
C)  Helicase 
D)  DNA ligase 
E)  DNA primase 
A)  DNA polymerase 
B)  DNA unwinding enzyme 
C)  Helicase 
D)  DNA ligase 
E)  DNA primase

Question 9

The set of alleles of a particular person is called the person’s

Accepted Answer

A)  Genotype 
B)  Somatotype 
C)  Phenotype 
D)  Proteome 
E)  Genome 
A)  Genotype 
B)  Somatotype 
C)  Phenotype 
D)  Proteome 
E)  Genome

Question 10

The genetic code is located

Accepted Answer

A)  On the mRNA 
B)  On the tRNA 
C)  On the DNA 
D)  On the amino acyl transferases 
E)  None of the above ; it is a system property 
A)  On the mRNA 
B)  On the tRNA 
C)  On the DNA 
D)  On the amino acyl transferases 
E)  None of the above ; it is a system property

Question 11

Adenine on one strand of D NA forms

Accepted Answer

A)  Three hydrogen bonds with guanosine on tRNA 
B)  Covalent bonds with rRNA 
C)  Two hydrogen bonds with thymine on tRNA 
D)  Two hydrogen bonds with cytosine on tRNA 
E)  Two hydrogen bonds with uracil on tRNA 
A)  Three hydrogen bonds with guanosine on tRNA 
B)  Covalent bonds with rRNA 
C)  Two hydrogen bonds with thymine on tRNA 
D)  Two hydrogen bonds with cytosine on tRNA 
E)  Two hydrogen bonds with uracil on tRNA

Question 12

"Transcription" refers to the

Accepted Answer

A)  Synthesis of proteins in the cytosol 
B)  Synthesis of proteins in the mitochondria 
C)  Synthesis of proteins on the ER membrane 
D)  Synthesis of mRNA from DNA in the nucleus 
E)  The formation of aminoacyl tRNA 
A)  Synthesis of proteins in the cytosol 
B)  Synthesis of proteins in the mitochondria 
C)  Synthesis of proteins on the ER membrane 
D)  Synthesis of mRNA from DNA in the nucleus 
E)  The formation of aminoacyl tRNA

Question 13

Regions of DNA that bind receptors for steroid hormones, for example, are called

Accepted Answer

A)  Exons 
B)  Introns 
C)  Splices 
D)  Response elements 
E)  Promoters 
A)  Exons 
B)  Introns 
C)  Splices 
D)  Response elements 
E)  Promoters

Question 14

Guanine on one strand of DNA forms

Accepted Answer

A)  Three hydrogen bonds with thymine on the opposite DNA strand 
B)  Three hydrogen bonds with thymine on tRNA 
C)  Three hydrogen bonds with cytosine on the opposite DNA strand 
D)  Two hydrogen bonds with thymine on the opposite DNA strand 
E)  Two hydrogen bonds with cytosine on the opposite DNA strand 
A)  Three hydrogen bonds with thymine on the opposite DNA strand 
B)  Three hydrogen bonds with thymine on tRNA 
C)  Three hydrogen bonds with cytosine on the opposite DNA strand 
D)  Two hydrogen bonds with thymine on the opposite DNA strand 
E)  Two hydrogen bonds with cytosine on the opposite DNA strand

Question 15

Histones are

Accepted Answer

A)  Proteins that bind DNA and make it inaccessible to transcription 
B)  Proteins that prevent DNA from being translated 
C)  Enzymes that mark cells for histology 
D)  Enzymes that ub iquinylate DNA 
E)  Enzymes that methylate DNA 
A)  Proteins that bind DNA and make it inaccessible to transcription 
B)  Proteins that prevent DNA from being translated 
C)  Enzymes that mark cells for histology 
D)  Enzymes that ub iquinylate DNA 
E)  Enzymes that methylate DNA

Question 16

The "backbone" of a single DNA nucleotide chain consists of

Accepted Answer

A) Deoxyribose units bonded together with phosphate groups hanging off one side and bases
hanging off the other side 
B)  Alternate phosphate and deoxyribose parts bonded covalently 
C)  Phosphate chains to which deoxyribose units with bases are attached 
D)  Nucleotides attached by hydrogen bonds 
E)  Nucleotides attached to each other by covalent bonds 
A) Deoxyribose units bonded together with phosphate groups hanging off one side and bases
hanging off the other side 
B)  Alternate phosphate and deoxyribose parts bonded covalently 
C)  Phosphate chains to which deoxyribose units with bases are attached 
D)  Nucleotides attached by hydrogen bonds 
E)  Nucleotides attached to each other by covalent bonds

Question 17

The 3' to 5' dire ction on one D NA strand being opposite to the 5' to 3' direction in the opposing strand is called

Accepted Answer

A)  Antiparallel 
B)  Double helix 
C)  Reverse strands 
D)  Helicase 
E)  Okazaki fragments 
A)  Antiparallel 
B)  Double helix 
C)  Reverse strands 
D)  Helicase 
E)  Okazaki fragments

Question 18

The on lyRNA that is not made from DNA is

Accepted Answer

A)  messenger RNA 
B)  ribosomal RNA 
C)  transfer RNA 
D)  small nuclear RNA 
E)  None of the above 
A)  messenger RNA 
B)  ribosomal RNA 
C)  transfer RNA 
D)  small nuclear RNA 
E)  None of the above

Question 19

Which of the following are NOT differences between RNA and DNA?

Accepted Answer

A)  DNA has deoxyribose, RNA has ribose 
B)  DNA uses thymine, RNA uses uracil to pair with guanine 
C)  DNA is double-stranded, RNA is single-stranded 
D)  DNA is replicated from DNA, but RNA is not replicated from RNA 
E)  All of the above are true differences between RNA and DNA 
A)  DNA has deoxyribose, RNA has ribose 
B)  DNA uses thymine, RNA uses uracil to pair with guanine 
C)  DNA is double-stranded, RNA is single-stranded 
D)  DNA is replicated from DNA, but RNA is not replicated from RNA 
E)  All of the above are true differences between RNA and DNA

Question 20

Which reaction is NOT part of the "histone code"

Accepted Answer

A)  Histone acetylation 
B)  Histone methylation 
C)  Histone phosphorylation 
D)  Histone proteolysis 
E)  Histone ubiquitinylation 
A)  Histone acetylation 
B)  Histone methylation 
C)  Histone phosphorylation 
D)  Histone proteolysis 
E)  Histone ubiquitinylation

Exam 7: Dna and Protein Synthesis

An exon is a region of DNA that is

The function of t-RNA is to

Transcription requires

The sequential order of binding of tRNA to the ribosome is

The "codon " refers to a triplet sequence of nucleotides in

A region of the DNA that is expressed is called

mRNA is made by

The un winding of DNA is accomplished by

The set of alleles of a particular person is called the person’s

The genetic code is located

Adenine on one strand of D NA forms

"Transcription" refers to the

Regions of DNA that bind receptors for steroid hormones, for example, are called

Guanine on one strand of DNA forms

Histones are

The "backbone" of a single DNA nucleotide chain consists of

The 3' to 5' dire ction on one D NA strand being opposite to the 5' to 3' direction in the opposing strand is called

The on lyRNA that is not made from DNA is

Which of the following are NOT differences between RNA and DNA?

Which reaction is NOT part of the "histone code"

Physical Foundations Ii: Electrical Force Potential Capacitance and Current

Chemical Foundations I: Chemical Energy and Intermolecular Forces

Chemical Foundations Ii: Concentration and Kinetics

Diffusion

Electrochemical Potential and Free Energy

Cell Structure

Protein Structure

Biological Membranes

Passive Transport and Facilitated Diffusion

Active Transport: Pumps and Exchangers

Osmosis and Osmotic Pressure

Cell Signaling

ATP Production I: Glycolysis

Atp Production Ii: Tca Cycle and Oxidative Phosphorylation

Atp Production Iii: Fatty Acid Oxidation and Amino Acid Oxidation

Origin of the Membrane Potential

The Action Potential

Propagation of the Action Potential

Skeletal Muscle Mechanics

Contractile Mechanisms in Skeletal Muscle

Neuromuscular Junction and Ec Coupling

Muscle Energetics Fatigue and Training

Smooth Muscle

Organization of the Nervous System

Cells Synapses and Neurotransmitters

Cutaneous Sensory Systems

Spinal Reflexes

Balance and Control of Movement

the Chemical Senses

Hearing

Vision

Autonomic Nervous System

Overview of the Cv System and Blood

Plasma and Red Blood Cells

White Blood Cells and Inflammation

The Heart As a Pump

Cellular Basis of Cardiac Contractility

the Cardiac Function Curve

Vascular Function: Hemodynamics

Microcirculation and Solute Exchange

Regulation of Perfusion

Integration of Cardiac Output and Venous Return

Regulation of Arterial Pressure

Mechanics of Breathing

Lung Volumes and Airway Resistance

Gas Exchange in the Lung

Oxygen and Carbon Dioxide Transport

Acid Base Physiology I Bicarbonate Buffers and Respiratory Compensation

Control of Ventilation

Anatomy and Renal Overview

Glomerular Filtration

Tubular Reabsorption and Secretion

Concentration and Dilution of Urine

Mouth and Esophagus

The Stomach

Intestinal and Colonic Motility

Pancreatic and Biliary Secretion

Digestion and Absorption of the Macronutrients

Energy Balance and Regulation of Food Intake