Question 1

Which enzyme is responsible for building the mRNA transcript from individual nucleotides?

Accepted Answer

A) ligase 
B) RNA polymerase 
C) ribozymes 
D) helicase 
E) DNA polymerase 
A) ligase 
B) RNA polymerase 
C) ribozymes 
D) helicase 
E) DNA polymerase B

Question 2

How many DNA bases are in each codon?

Accepted Answer

A) 3 
B) 16 
C) 4 
D) 20 
E) 64 
A) 3 
B) 16 
C) 4 
D) 20 
E) 64 A

Question 3

Which statement would have to be changed if found in a Biology textbook?

Accepted Answer

A) They can cause point mutations. 
B) They can cause deletions and translocations. 
C) They can block transcription. 
D) They can cause frameshift mutations. 
E) They contain antibiotic-resistance genes. 
A) They can cause point mutations. 
B) They can cause deletions and translocations. 
C) They can block transcription. 
D) They can cause frameshift mutations. 
E) They contain antibiotic-resistance genes. A

Question 4

Which nucleotide is found in RNA rather than DNA?

Accepted Answer

A) thymine 
B) adenine 
C) uracil 
D) cytosine 
E) guanine 
A) thymine 
B) adenine 
C) uracil 
D) cytosine 
E) guanine

Question 5

What type of mutation changes the base of a single DNA nucleotide,which then causes a change in a specific codon?

Accepted Answer

A) translocation mutation 
B) frameshift mutation 
C) point mutation 
D) polymerase mutation 
E) transposon mutation 
A) translocation mutation 
B) frameshift mutation 
C) point mutation 
D) polymerase mutation 
E) transposon mutation

Question 6

The DNA sequences of a gene that do not code for amino acids in a protein are called

Accepted Answer

A) promoters. 
B) introns. 
C) transposons. 
D) inducers. 
E) exons. 
A) promoters. 
B) introns. 
C) transposons. 
D) inducers. 
E) exons.

Question 7

The step which brings all the translation elements together is referred to as

Accepted Answer

A) elongation. 
B) initiation. 
C) replication. 
D) translocation. 
E) transcription. 
A) elongation. 
B) initiation. 
C) replication. 
D) translocation. 
E) transcription.

Question 8

Initiation,elongation,and termination are three stages in

Accepted Answer

A) DNA replication. 
B) codon-anticodon formation. 
C) mRNA transcription. 
D) error correction by proofreading enzymes. 
E) polypeptide synthesis. 
A) DNA replication. 
B) codon-anticodon formation. 
C) mRNA transcription. 
D) error correction by proofreading enzymes. 
E) polypeptide synthesis.

Question 9

In semiconservative DNA replication,each new double helix formed will have

Accepted Answer

A) three new strands in one helix and three old strands in the second helix. 
B) one new strand and one old strand in each helix. 
C) two new strands and two old strands in each helix. 
D) two new and one old strand in one helix and two old and one new in the second helix. 
E) only new strands in each helix. 
A) three new strands in one helix and three old strands in the second helix. 
B) one new strand and one old strand in each helix. 
C) two new strands and two old strands in each helix. 
D) two new and one old strand in one helix and two old and one new in the second helix. 
E) only new strands in each helix.

Question 10

Although DNA replication of one cell involves billions of nucleotides,why is this process so accurate?

Accepted Answer

A) DNA primers can replace any mistakes in base-pairing 
B) RNA polymerase corrects any mistakes before doing RNA transcription 
C) Unwinding the double helix would remove any mistakes in base-pairing. 
D) DNA polymerase proofreads and corrects mistakes in base-pairing. 
E) Semiconservative replication means that the process is very careful and conservativE. 
A) DNA primers can replace any mistakes in base-pairing 
B) RNA polymerase corrects any mistakes before doing RNA transcription 
C) Unwinding the double helix would remove any mistakes in base-pairing. 
D) DNA polymerase proofreads and corrects mistakes in base-pairing. 
E) Semiconservative replication means that the process is very careful and conservativE.

Question 11

During the process of translation,the information in

Accepted Answer

A) DNA is converted into RNA information. 
B) RNA is converted into protein information. 
C) DNA is converted into protein information. 
D) protein is converted into RNA information. 
E) RNA is converted into DNA information. 
A) DNA is converted into RNA information. 
B) RNA is converted into protein information. 
C) DNA is converted into protein information. 
D) protein is converted into RNA information. 
E) RNA is converted into DNA information.

Question 12

The enzyme that is used to join successive DNA nucleotides together is which?

Accepted Answer

A) DNA polymerase 
B) Lipase 
C) RNA polymerase 
D) Ribozyme 
E) Helicase 
A) DNA polymerase 
B) Lipase 
C) RNA polymerase 
D) Ribozyme 
E) Helicase

Question 13

During the process of transcription,the information in

Accepted Answer

A) RNA is converted into DNA information. 
B) RNA is converted into protein information. 
C) DNA is converted into RNA information. 
D) protein is converted into RNA information. 
E) DNA is converted into protein information. 
A) RNA is converted into DNA information. 
B) RNA is converted into protein information. 
C) DNA is converted into RNA information. 
D) protein is converted into RNA information. 
E) DNA is converted into protein information.

Question 14

What process results in the assembly of a protein chain?

Accepted Answer

A) replication 
B) translation 
C) translocation 
D) mutation 
E) transcription 
A) replication 
B) translation 
C) translocation 
D) mutation 
E) transcription

Question 15

Which statement,if true,would lead to serious problems in DNA replication?

Accepted Answer

A) Unwinding of the DNA molecules occurs as hydrogen bonds break. 
B) The process is known as semiconservative replication because one old strand is conserved in the new molecule. 
C) Replication occurs as each base is paired with another exactly like it. 
D) Complementary base pairs are held together with hydrogen bonds. 
E) The enzyme that catalyzes DNA replication is DNA polymerasE. 
A) Unwinding of the DNA molecules occurs as hydrogen bonds break. 
B) The process is known as semiconservative replication because one old strand is conserved in the new molecule. 
C) Replication occurs as each base is paired with another exactly like it. 
D) Complementary base pairs are held together with hydrogen bonds. 
E) The enzyme that catalyzes DNA replication is DNA polymerasE.

Question 16

Figure:  
-In this figure showing DNA replication,what does "E" represent?

Accepted Answer

A) the parental DNA region 
B) the new strand 
C) the replication region 
D) the template strand 
E) the completed DNA region 
A) the parental DNA region 
B) the new strand 
C) the replication region 
D) the template strand 
E) the completed DNA region

Question 17

Movable genetic elements are referred to as

Accepted Answer

A) frameshift mutations 
B) point mutations 
C) transcription elements 
D) translocation elements 
E) transposons 
A) frameshift mutations 
B) point mutations 
C) transcription elements 
D) translocation elements 
E) transposons

Question 18

What is the error rate in the DNA replication process,for eukaryotes?

Accepted Answer

A) one in 1 billion nucleotides 
B) one in 1 hundred nuclotides 
C) one in 1 thousand nucleotides 
D) one in 10,000 nucleotides 
E) one in 1 million nucleotides 
A) one in 1 billion nucleotides 
B) one in 1 hundred nuclotides 
C) one in 1 thousand nucleotides 
D) one in 10,000 nucleotides 
E) one in 1 million nucleotides

Question 19

The X-ray diffraction of Rosalind Franklin and Maurice Wilkins was critical evidence

Accepted Answer

A) that indicated that DNA has a double helix structure. 
B) that showed that the bases of DNA are held together by hydrogen bonds. 
C) that showed that there was an equal numbers of purines and pyrimidines in DNA. 
D) that showed the location of each adenine,guanine,cytosine,and thymine. 
E) that revealed the structure of deoxyribose sugar. 
A) that indicated that DNA has a double helix structure. 
B) that showed that the bases of DNA are held together by hydrogen bonds. 
C) that showed that there was an equal numbers of purines and pyrimidines in DNA. 
D) that showed the location of each adenine,guanine,cytosine,and thymine. 
E) that revealed the structure of deoxyribose sugar.

Question 20

Which process in translation is the movement of the ribosome,such that the tRNA at the A site moves to the P site?

Accepted Answer

A) initiation. 
B) translocation. 
C) replication. 
D) transcription. 
E) mutation. 
A) initiation. 
B) translocation. 
C) replication. 
D) transcription. 
E) mutation.

Exam 11: Molecular Biology of Inheritance

Which enzyme is responsible for building the mRNA transcript from individual nucleotides?

How many DNA bases are in each codon?

Which statement would have to be changed if found in a Biology textbook?

Which nucleotide is found in RNA rather than DNA?

What type of mutation changes the base of a single DNA nucleotide,which then causes a change in a specific codon?

The DNA sequences of a gene that do not code for amino acids in a protein are called

The step which brings all the translation elements together is referred to as

Initiation,elongation,and termination are three stages in

In semiconservative DNA replication,each new double helix formed will have

Although DNA replication of one cell involves billions of nucleotides,why is this process so accurate?

During the process of translation,the information in

The enzyme that is used to join successive DNA nucleotides together is which?

During the process of transcription,the information in

What process results in the assembly of a protein chain?

Which statement,if true,would lead to serious problems in DNA replication?

Figure: -In this figure showing DNA replication,what does "E" represent?

Movable genetic elements are referred to as

What is the error rate in the DNA replication process,for eukaryotes?

The X-ray diffraction of Rosalind Franklin and Maurice Wilkins was critical evidence

Which process in translation is the movement of the ribosome,such that the tRNA at the A site moves to the P site?

Biology, the Study of Life

Basic Chemistry of Cells

Organic Molecules of Cells

Structure and Function of Cells

Dynamic Activities of Cells

Pathways of Photosynthesis

Pathways of Cellular Respiration

Cellular Reproduction

Sexual Reproduction

Patterns of Genetic Inheritance

Regulation of Gene Activity

Biotechnology and Genomics

Evidence of Evolution

Speciation and Evolution

The Evolutionary History of Life on Earth

Evolution of Microbial Life

Evolution of Protists

Evolution of Plants and Fungi

Evolution of Animals

Evolution of Humans

Plant Organization and Homeostasis

Transport and Nutrition in Plants

Control of Growth Responses in Plants

Reproduction in Plants

Animal Organization and Homeostasis

Coordination by Neural Signaling

Sense Organs

Locomotion and Support Systems

Circulation and Cardiovascular Systems

Lymph Transport and Immunity

Digestive Systems and Nutrition

Gas Exchange and Transport in Animals

Osmoregulation and Excretion

Coordination by Hormone Signaling

Reproduction and Development

Population Ecology

Behavioral Ecology

Community and Ecosystem Ecology

Major Ecosystems of the Biosphere

Conservation Biology

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