Question 1

What is the relationship between any two strands of DNA?

Accepted Answer

A)  An A base on one always pairs with a G base on the other. 
B)  They are a pair of sister chromatids. 
C)  They are connected to each other by sugar-phosphate bonds. 
D)  One was the template for the synthesis of the other. 
E)  They have identical base sequences. 
A)  An A base on one always pairs with a G base on the other. 
B)  They are a pair of sister chromatids. 
C)  They are connected to each other by sugar-phosphate bonds. 
D)  One was the template for the synthesis of the other. 
E)  They have identical base sequences.

Question 2

If mutations lead to cancerous cells, why don't most point mutations immediately make a cell cancerous?

Accepted Answer

A)  Cancer-causing changes are accompanied by compensating cancer-reducing changes. 
B)  Point mutations are not passed from parent to daughter cells in cell division. 
C)  All point mutations occur in germ-line cells, which do not become cancerous. 
D)  Multiple mutations are required to make a malignant cancer cell. 
E)  Point mutations rarely occur in genes. 
A)  Cancer-causing changes are accompanied by compensating cancer-reducing changes. 
B)  Point mutations are not passed from parent to daughter cells in cell division. 
C)  All point mutations occur in germ-line cells, which do not become cancerous. 
D)  Multiple mutations are required to make a malignant cancer cell. 
E)  Point mutations rarely occur in genes.

What is the relationship between any two strands of DNA?

If mutations lead to cancerous cells, why don't most point mutations immediately make a cell cancerous?

A Guide to the Natural World

Chemistry, Water and PH

Lifes Components: Biological Molecules

Lifes Home: The Cell

Lifes Border: The Plasma Membrane

An Introduction to Energy

Deriving Energy From Food

Photosynthesis

Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

Mendel and His Discoveries

Chromosomes and Inheritance

Transcription Translation and Regulation

Biotechnology

Charles Darwin, Evolutionary Thought, and the Evidence for Evolution

Microevolution

Macroevolution

The History of Life on Earth

The Evolution of Human Beings

The Diversity of Life 1

The Diversity of Life 2

The Diversity of Life 3

An Introduction to Flowering Plants

Form and Function in Flowering Plants

The Integumentary Skeletal and Muscular Systems

The Nervous and Endocrine System

The Immune System

Blood and Breath

Digestion, Nutrition and Elimination

Animal Development

Human Reproduction

Populations in Ecology

Communities in Ecology

Ecosystems and Biomes

Animal Behavior

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Exam 13: Dna Structure and Replication

What is the relationship between any two strands of DNA?

If mutations lead to cancerous cells, why don't most point mutations immediately make a cell cancerous?

A Guide to the Natural World

Chemistry, Water and PH

Lifes Components: Biological Molecules

Lifes Home: The Cell

Lifes Border: The Plasma Membrane

An Introduction to Energy

Deriving Energy From Food

Photosynthesis

Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

Mendel and His Discoveries

Chromosomes and Inheritance

Transcription Translation and Regulation

Biotechnology

Charles Darwin, Evolutionary Thought, and the Evidence for Evolution

Microevolution

Macroevolution

The History of Life on Earth

The Evolution of Human Beings

The Diversity of Life 1

The Diversity of Life 2

The Diversity of Life 3

An Introduction to Flowering Plants

Form and Function in Flowering Plants

The Integumentary Skeletal and Muscular Systems

The Nervous and Endocrine System

The Immune System

Blood and Breath

Digestion, Nutrition and Elimination

Animal Development

Human Reproduction

Populations in Ecology

Communities in Ecology

Ecosystems and Biomes

Animal Behavior

Filters