Question 1

A purine on one strand of the DNA is always paired with a pyrimidine on the other strand.

Accepted Answer

A) True 
 B)False

Question 2

Which base is not found in DNA?

Accepted Answer

A) Cytosine 
B) Guanine 
C) Thymidine 
D) Adenine 
E) Uracil 
A) Cytosine 
B) Guanine 
C) Thymidine 
D) Adenine 
E) Uracil

Question 3

What were the conclusions of Franklin's work regarding the structure of DNA?

Accepted Answer

A) It did not have a helical structure 
B) The helix had more than one strand 
C) The helix contained about 1 bases per turn 
D) The helix had only one strand 
A) It did not have a helical structure 
B) The helix had more than one strand 
C) The helix contained about 1 bases per turn 
D) The helix had only one strand

Question 4

Which of the following is a correct matching of the researcher with their discovery?

Accepted Answer

A) Pauling provided information on primary structure in biological molecules. 
B) Franklin suggested that DNA was a helix with more than one strand and that there were about 10 bases per turn of the DNA. 
C) Watson and Crick collected a large amount of X-ray data on the structure of DNA. 
D) Chargaff demonstrated that the adenine and cytosine bases and the uracil and guanine bases interacted in some manner. 
A) Pauling provided information on primary structure in biological molecules. 
B) Franklin suggested that DNA was a helix with more than one strand and that there were about 10 bases per turn of the DNA. 
C) Watson and Crick collected a large amount of X-ray data on the structure of DNA. 
D) Chargaff demonstrated that the adenine and cytosine bases and the uracil and guanine bases interacted in some manner.

Question 5

What was the conclusion of the Hershey-Chase experiments?

Accepted Answer

A) Their results suggested the presence of a transforming principle. 
B) Their results suggested that DNA is a double helix 
C) Their results suggested that A+G=T+C 
D) Their results suggested that the DNA is the genetic material 
A) Their results suggested the presence of a transforming principle. 
B) Their results suggested that DNA is a double helix 
C) Their results suggested that A+G=T+C 
D) Their results suggested that the DNA is the genetic material

Question 6

Adenine and thymine form _______ hydrogen bonds between them, while cytosine and guanine form _______ bonds.

Accepted Answer

A)  2 , 3 
B)  3 , 4 
C)  3 , 2 
D)  4 , 3 
A)  2 , 3 
B)  3 , 4 
C)  3 , 2 
D)  4 , 3

Question 7

The idea that the adenine and thymine bases of the DNA interact in some manner was first proposed by _______.

Accepted Answer

A)  Watson and Crick 
B)  Franklin 
C)  Pauling 
D)  Chargaff 
A)  Watson and Crick 
B)  Franklin 
C)  Pauling 
D)  Chargaff

Question 8

The building blocks of DNA are called _________.

Accepted Answer

A)  amino acids 
B)  codons 
C)  nucleotides 
D)  alleles 
A)  amino acids 
B)  codons 
C)  nucleotides 
D)  alleles

Question 9

Avery used the enzyme _______ to remove the proteins from the cell extracts.

Accepted Answer

A)  protease 
B)  DNase 
C)  RNase 
D)  All of the answers are correct 
A)  protease 
B)  DNase 
C)  RNase 
D)  All of the answers are correct

Question 10

These individuals determined that DNA was responsible for the process of transduction in T2 phage.

Accepted Answer

A)  Hershey and Chase 
B)  Avery, Macleod, and McCarty 
C)  Watson and Crick 
D)  Creighton and McClintock 
A)  Hershey and Chase 
B)  Avery, Macleod, and McCarty 
C)  Watson and Crick 
D)  Creighton and McClintock

Question 11

One strand of DNA is 5' - AGGCCTTA - 3'. What is the opposite strand?

Accepted Answer

A)  5'-AGGCCTTA-3' 
B)  5'-TCCGGAAT-3' 
C)  3'-AGGCCTTA-5' 
D)  3'-TCCGGAAT-5' 
A)  5'-AGGCCTTA-3' 
B)  5'-TCCGGAAT-3' 
C)  3'-AGGCCTTA-5' 
D)  3'-TCCGGAAT-5'

Question 12

How does DNA differ from RNA?

Accepted Answer

A) RNA uses only purines 
B) RNA uses a different five-carbon sugar 
C) RNA has a contains different sized phosphate groups 
D) RNA has multiple bases attached to the sugar 
A) RNA uses only purines 
B) RNA uses a different five-carbon sugar 
C) RNA has a contains different sized phosphate groups 
D) RNA has multiple bases attached to the sugar

Question 13

The pyrimidine bases are _______.

Accepted Answer

A)  cytosine, thymine, and uracil 
B)  adenine and guanine 
C)  adenine and thymine 
D)  cytosine and guanine 
A)  cytosine, thymine, and uracil 
B)  adenine and guanine 
C)  adenine and thymine 
D)  cytosine and guanine

Question 14

All living organisms use DNA as the genetic material.

Accepted Answer

A) True 
 B)False

Question 15

The backbone of the DNA molecule is formed by ________.

Accepted Answer

A) peptide bonds 
B) ribose sugars 
C) nitrogenous bases 
D) phosphodiester bonds 
A) peptide bonds 
B) ribose sugars 
C) nitrogenous bases 
D) phosphodiester bonds

Question 16

What is the most complex structure DNA can form?

Accepted Answer

A) individual nucleotides 
B) a folded and bended double helix 
C) a single strand of DNA 
D) a DNA double helix 
A) individual nucleotides 
B) a folded and bended double helix 
C) a single strand of DNA 
D) a DNA double helix

Question 17

The researcher(s) who initially used X-ray diffraction to gather information on the DNA molecule was ______.

Accepted Answer

A) Franklin 
B) Watson and Crick 
C) Hershey and Chase 
D) Pauling 
E) Chargaff 
A) Franklin 
B) Watson and Crick 
C) Hershey and Chase 
D) Pauling 
E) Chargaff

Question 18

The first group of researchers to correctly identify the double-helix structure of DNA were _______.

Accepted Answer

A) McClintock and Franklin 
B) Hershey and Chase 
C) Pauling and Avery 
D) Watson and Crick 
A) McClintock and Franklin 
B) Hershey and Chase 
C) Pauling and Avery 
D) Watson and Crick

Question 19

Frederick Griffith is responsible for discovering what process?

Accepted Answer

A) Replication 
B) Transmission 
C) Transformation 
D) Transduction 
A) Replication 
B) Transmission 
C) Transformation 
D) Transduction

Question 20

In the Hershey-Chase experiments, the protein coat of the bacteriophage was labeled with the 32P radioisotope.

Accepted Answer

A) True 
 B)False

Exam 9: Molecular Structure of DNA and RNA

A purine on one strand of the DNA is always paired with a pyrimidine on the other strand.

Which base is not found in DNA?

What were the conclusions of Franklin's work regarding the structure of DNA?

Which of the following is a correct matching of the researcher with their discovery?

What was the conclusion of the Hershey-Chase experiments?

Adenine and thymine form _______ hydrogen bonds between them, while cytosine and guanine form _______ bonds.

The idea that the adenine and thymine bases of the DNA interact in some manner was first proposed by _______.

The building blocks of DNA are called _________.

Avery used the enzyme _______ to remove the proteins from the cell extracts.

These individuals determined that DNA was responsible for the process of transduction in T2 phage.

One strand of DNA is 5' - AGGCCTTA - 3'. What is the opposite strand?

How does DNA differ from RNA?

The pyrimidine bases are _______.

All living organisms use DNA as the genetic material.

The backbone of the DNA molecule is formed by ________.

What is the most complex structure DNA can form?

The researcher(s) who initially used X-ray diffraction to gather information on the DNA molecule was ______.

The first group of researchers to correctly identify the double-helix structure of DNA were _______.

Frederick Griffith is responsible for discovering what process?

In the Hershey-Chase experiments, the protein coat of the bacteriophage was labeled with the 32P radioisotope.

Overview of Genetics

Mendelian Inheritance

Chromosome Transmission During Cell Division and Sexual Reproduction

Extensions of Mendelian Inheritance

Non-Mendelian Inheritance

Genetic Linkage and Mapping in Eukaryotes

Genetic Transfer and Mapping in Bacteria and Bacteriophages

Variation in Chromosome Structure and Number

Chromosome Organization and Molecular Structure

DNA Replication

Gene Transcription and RNA Modification

Translation of MRNA

Gene Regulation in Bacteria

Gene Regulation in Eukaryotes I: Transcriptional Regulation

Gene Regulation in Eukaryotes II: Epigenetics and Regulation at the RNA Level

Genetics of Viruses

Gene Mutation and Dna Repair

Recombination and Transposition at the Molecular Level

DNA Technologies

Biotechnology

Genomics I: Analysis of DNA

Genomics II: Functional Genomics, Proteomics, and Bioinformatics

Medical Genetics and Cancer

Developmental Genetics

Population Genetics

Quantitative Genetics

Evolutionary Genetics

Filters

Adenine and thymine form _ hydrogen bonds between them, while cytosine and guanine form _ bonds.

In the Hershey-Chase experiments, the protein coat of the bacteriophage was labeled with the ³²P radioisotope.