Question 1

What is the key function of a DNA primer in the polymerase chain reaction (PCR)?

Accepted Answer

A) It hybridizes to the beginning of a gene, creating a site for DNA polymerase to initiate DNA synthesis of the selected gene. 
B) It aids in winding the newly produced DNA molecule with proteins to form a chromosome. 
C) It catalyzes the separation of the two strands of DNA being copied. 
D) It is the source of the four nucleotides needed in PCR. 
E) It acts as a buffer to main a constant pH in the PCR solution. 
A) It hybridizes to the beginning of a gene, creating a site for DNA polymerase to initiate DNA synthesis of the selected gene. 
B) It aids in winding the newly produced DNA molecule with proteins to form a chromosome. 
C) It catalyzes the separation of the two strands of DNA being copied. 
D) It is the source of the four nucleotides needed in PCR. 
E) It acts as a buffer to main a constant pH in the PCR solution.

Question 2

Meselson and Stahl (1958) reported experimental results involving nitrogen-labeling relevant to which of the following?

Accepted Answer

A) the helical structure of DNA 
B) the role of RNA in DNA transcription 
C) the basis for DNA fingerprinting 
D) the mechanism of the polymerase chain reaction 
E) the semiconservative mechanism of DNA replication 
A) the helical structure of DNA 
B) the role of RNA in DNA transcription 
C) the basis for DNA fingerprinting 
D) the mechanism of the polymerase chain reaction 
E) the semiconservative mechanism of DNA replication

Question 3

Which of the following changes in a DNA molecule may have no effect on the protein for which the DNA codes?

Accepted Answer

A) a deletion mutation 
B) formation of a thymine dimer 
C) changing the first base in a triplet 
D) changing the second base in a triplet 
E) changing the third base in a triplet 
A) a deletion mutation 
B) formation of a thymine dimer 
C) changing the first base in a triplet 
D) changing the second base in a triplet 
E) changing the third base in a triplet

Question 4

The two strands of the DNA molecule are antiparallel to one another.

Accepted Answer

A) True 
 B)False

What is the key function of a DNA primer in the polymerase chain reaction (PCR)?

Meselson and Stahl (1958) reported experimental results involving nitrogen-labeling relevant to which of the following?

Which of the following changes in a DNA molecule may have no effect on the protein for which the DNA codes?

The two strands of the DNA molecule are antiparallel to one another.

Chemistry:methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, Chemical Changes, and the Chemical Equation

States of Matter- Gases, Liquids, and Solids

Solutions

Energy, Rate and Equilibrium

Acids and Bases

The Nucleus, Radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry- the Saturated Hydrocarbons

The Unsaturated Hydrocarbons- Alkenes, Alkynes, and Aromatics

Alcohols, Phenols, Thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

Exam 20: Introduction to Molecular Genetics

What is the key function of a DNA primer in the polymerase chain reaction (PCR)?

Meselson and Stahl (1958) reported experimental results involving nitrogen-labeling relevant to which of the following?

Which of the following changes in a DNA molecule may have no effect on the protein for which the DNA codes?

The two strands of the DNA molecule are antiparallel to one another.

Chemistry:methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, Chemical Changes, and the Chemical Equation

States of Matter- Gases, Liquids, and Solids

Solutions

Energy, Rate and Equilibrium

Acids and Bases

The Nucleus, Radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry- the Saturated Hydrocarbons

The Unsaturated Hydrocarbons- Alkenes, Alkynes, and Aromatics

Alcohols, Phenols, Thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters