Question 1

Which of the following is true of rRNA?

Accepted Answer

A) It is made up of base pairs. 
B) It carries amino acids. 
C) It is not translated. 
D) It helps transcribe DNA. 
A) It is made up of base pairs. 
B) It carries amino acids. 
C) It is not translated. 
D) It helps transcribe DNA.

Question 2

Some viruses produce an enzyme called reverse transcriptase. Based on your understanding of gene expression, what should this enzyme do?

Accepted Answer

A) It produces RNA from a DNA template. 
B) It produces DNA from an RNA template. 
C) It produces proteins from an RNA template. 
D) It produces RNA from a protein template. 
A) It produces RNA from a DNA template. 
B) It produces DNA from an RNA template. 
C) It produces proteins from an RNA template. 
D) It produces RNA from a protein template.

Question 3

Which of the following is true about gene regulation in cells?

Accepted Answer

A) Gene expression is nonvariable for cells; it is the same for all cells of the same type. 
B) Gene expression is highly variable; it changes for many different reasons throughout the life of a cell. 
C) Gene expression is set by internal factors early in the life cycle of a cell and remains the same from that point forward. 
D) Gene expression is set by external factors early in the life cycle of a cell and remains the same from that point forward. 
A) Gene expression is nonvariable for cells; it is the same for all cells of the same type. 
B) Gene expression is highly variable; it changes for many different reasons throughout the life of a cell. 
C) Gene expression is set by internal factors early in the life cycle of a cell and remains the same from that point forward. 
D) Gene expression is set by external factors early in the life cycle of a cell and remains the same from that point forward.

Question 4

Prokaryotes lack membrane-enclosed organelles and thus do not have nuclei. Therefore,

Accepted Answer

A) prokaryotes are unable to undergo transcription and translation. 
B) prokaryotic cells do not need to undergo translation. 
C) prokaryotic cells do not need to undergo transcription. 
D) prokaryotic transcription and translation both take place in the cytoplasm. 
A) prokaryotes are unable to undergo transcription and translation. 
B) prokaryotic cells do not need to undergo translation. 
C) prokaryotic cells do not need to undergo transcription. 
D) prokaryotic transcription and translation both take place in the cytoplasm.

Which of the following is true of rRNA?

Some viruses produce an enzyme called reverse transcriptase. Based on your understanding of gene expression, what should this enzyme do?

Which of the following is true about gene regulation in cells?

Prokaryotes lack membrane-enclosed organelles and thus do not have nuclei. Therefore,

The Nature of Science

Chemistry of Life

Life Is Cellular

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Ecosystems

Homeostasis, Reproduction, and Development

Digestive, Muscular, and Skeletal Systems

Circulatory, Respiratory, Urinary, and Nervous Systems

Endocrine and Immune Systems

Plant Physiology

Applying the Science

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Exam 9: How Genes Work

Which of the following is true of rRNA?

Some viruses produce an enzyme called reverse transcriptase. Based on your understanding of gene expression, what should this enzyme do?

Which of the following is true about gene regulation in cells?

Prokaryotes lack membrane-enclosed organelles and thus do not have nuclei. Therefore,

The Nature of Science

Chemistry of Life

Life Is Cellular

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Ecosystems

Homeostasis, Reproduction, and Development

Digestive, Muscular, and Skeletal Systems

Circulatory, Respiratory, Urinary, and Nervous Systems

Endocrine and Immune Systems

Plant Physiology

Applying the Science

Filters