Question 1

DNA is able to replicate as quickly as it does because it has many

Accepted Answer

A)  replication forks. 
B)  replication spoons. 
C)  chromosomes. 
D)  genes. 
E)  histones. 
A)  replication forks. 
B)  replication spoons. 
C)  chromosomes. 
D)  genes. 
E)  histones.

Question 2

Which of the following is most correct regarding genes,DNA and protein?

Accepted Answer

A)  A gene is a section of DNA whose sequence encodes a particular protein, which is composed of amino acids. 
B)  A gene is a section of a chromosomal DNA composed of many amino acids. 
C)  DNA is composed of many genes, which are formed from amino acid sequences. 
D)  A gene is composed of amino acids whose sequence encodes a particular protein. 
E)  DNA is composed of amino acids, which encode the protein and genotype. 
A)  A gene is a section of DNA whose sequence encodes a particular protein, which is composed of amino acids. 
B)  A gene is a section of a chromosomal DNA composed of many amino acids. 
C)  DNA is composed of many genes, which are formed from amino acid sequences. 
D)  A gene is composed of amino acids whose sequence encodes a particular protein. 
E)  DNA is composed of amino acids, which encode the protein and genotype.

Question 3

Watson and Crick based their conclusion that DNA is a double helix on experimental results and measurements from

Accepted Answer

A)  Chargaff, Wilkins and Franklin. 
B)  Avery, MacLeod and McCarty. 
C)  Hershey and Chase. 
D)  Charles Darwin. 
E)  Linus Pauling. 
A)  Chargaff, Wilkins and Franklin. 
B)  Avery, MacLeod and McCarty. 
C)  Hershey and Chase. 
D)  Charles Darwin. 
E)  Linus Pauling.

Question 4

The directional nature of the DNA double helix is observed in the

Accepted Answer

A)  locations of the hydrogen bonds. 
B)  locations of the numbered carbons in the sugars. 
C)  locations of the oxygen atom in the phosphate. 
D)  double helix when it is separated into single strands. 
E)  mirror. 
A)  locations of the hydrogen bonds. 
B)  locations of the numbered carbons in the sugars. 
C)  locations of the oxygen atom in the phosphate. 
D)  double helix when it is separated into single strands. 
E)  mirror.

Question 5

Miescher discovered phosphorus in DNA taken from

Accepted Answer

A)  bacteria. 
B)  viruses. 
C)  soiled bandages. 
D)  dead mice. 
E)  a chemistry lab. 
A)  bacteria. 
B)  viruses. 
C)  soiled bandages. 
D)  dead mice. 
E)  a chemistry lab.

Question 6

Antiparallelism means that

Accepted Answer

A)  the two strands of a DNA molecule run in opposite directions. 
B)  the DNA double helix twists first one way, then the other. 
C)  the DNA bases are sometimes on the outside of the molecule. 
D)  the DNA molecule cannot dissolve in water. 
E)  DNA and RNA are not the same molecule. 
A)  the two strands of a DNA molecule run in opposite directions. 
B)  the DNA double helix twists first one way, then the other. 
C)  the DNA bases are sometimes on the outside of the molecule. 
D)  the DNA molecule cannot dissolve in water. 
E)  DNA and RNA are not the same molecule.

Question 7

_______ used models to deduce the double helical shape of DNA.

Accepted Answer

A)  Linus Pauling 
B)  James Watson and Francis Crick 
C)  Martha Chase 
D)  Maclyn McCarty 
E)  Rosalind Franklin 
A)  Linus Pauling 
B)  James Watson and Francis Crick 
C)  Martha Chase 
D)  Maclyn McCarty 
E)  Rosalind Franklin

Question 8

In a eukaryotic genome,DNA replication starts at

Accepted Answer

A)  a single origin of replication. 
B)  one replication fork per chromosome. 
C)  nucleosomes. 
D)  sites near the nucleolus. 
E)  multiple sites along the length of each chromosome. 
A)  a single origin of replication. 
B)  one replication fork per chromosome. 
C)  nucleosomes. 
D)  sites near the nucleolus. 
E)  multiple sites along the length of each chromosome.

Question 9

Chargaff showed that DNA with 60% adenine and thymine has ___ guanine and cytosine.

Accepted Answer

A)  10% 
B)  20% 
C)  25% 
D)  40% 
E)  60% 
A)  10% 
B)  20% 
C)  25% 
D)  40% 
E)  60%

Question 10

A nucleotide consists of

Accepted Answer

A) A,T,C,and G. 
B) three sugars for every phosphate. 
C) three phosphates for every sugar. 
D) one deoxyribose sugar,one nitrogenous base,and one phosphate group. 
E) three DNA bases. 
A) A,T,C,and G. 
B) three sugars for every phosphate. 
C) three phosphates for every sugar. 
D) one deoxyribose sugar,one nitrogenous base,and one phosphate group. 
E) three DNA bases.

DNA is able to replicate as quickly as it does because it has many

Which of the following is most correct regarding genes,DNA and protein?

Watson and Crick based their conclusion that DNA is a double helix on experimental results and measurements from

The directional nature of the DNA double helix is observed in the

Miescher discovered phosphorus in DNA taken from

Antiparallelism means that

_______ used models to deduce the double helical shape of DNA.

In a eukaryotic genome,DNA replication starts at

Chargaff showed that DNA with 60% adenine and thymine has ___ guanine and cytosine.

A nucleotide consists of

Overview of Genetics

Cells

Meiosis and Development

Single-Gene Inheritance

Beyond Mendels Law

Matters of Sex

Multifactorial Traits

Genetics of Behavior

Gene Action: From Dna to Protein

Gene Expression and Epigenetics

Gene Mutation

Chromosomes

Constant Allele Frequencies

Changing Allele Frequencies

Human Ancestry

Genetics of Immunity

Genetics of Cancer

Genetic Technologies: Amplifying, Modifying, and Monitoring DNA

Genetic Testing and Treatment

Reproductive Technologies

Genomics

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Exam 9: DNA Structure and Replication

DNA is able to replicate as quickly as it does because it has many

Which of the following is most correct regarding genes,DNA and protein?

Watson and Crick based their conclusion that DNA is a double helix on experimental results and measurements from

The directional nature of the DNA double helix is observed in the

Miescher discovered phosphorus in DNA taken from

Antiparallelism means that

_______ used models to deduce the double helical shape of DNA.

In a eukaryotic genome,DNA replication starts at

Chargaff showed that DNA with 60% adenine and thymine has ___ guanine and cytosine.

A nucleotide consists of

Overview of Genetics

Cells

Meiosis and Development

Single-Gene Inheritance

Beyond Mendels Law

Matters of Sex

Multifactorial Traits

Genetics of Behavior

Gene Action: From Dna to Protein

Gene Expression and Epigenetics

Gene Mutation

Chromosomes

Constant Allele Frequencies

Changing Allele Frequencies

Human Ancestry

Genetics of Immunity

Genetics of Cancer

Genetic Technologies: Amplifying, Modifying, and Monitoring DNA

Genetic Testing and Treatment

Reproductive Technologies

Genomics

Filters