Question 1

Yeasts are able to communicate with each other

Accepted Answer

A)  by close cell-to-cell contact. 
B)  through chemical signaling. 
C)  only if they can touch each other and have merged cell walls. 
A)  by close cell-to-cell contact. 
B)  through chemical signaling. 
C)  only if they can touch each other and have merged cell walls.

Question 2

Cancer of the colon is caused by

Accepted Answer

A)  a single somatic cell gene mutation. 
B)  several somatic cell gene mutations. 
C)  a physical rupture of the colon. 
D)  a diet high in fiber and low in fat. 
A)  a single somatic cell gene mutation. 
B)  several somatic cell gene mutations. 
C)  a physical rupture of the colon. 
D)  a diet high in fiber and low in fat.

Question 3

The relationship between DNA and histones is most like

Accepted Answer

A)  an egg yolk inside of an egg. 
B)  a spoon cradling some peas. 
C)  thread wrapped around a spool. 
D)  the candy shell surrounding the chocolate in a piece of M&M candy. 
A)  an egg yolk inside of an egg. 
B)  a spoon cradling some peas. 
C)  thread wrapped around a spool. 
D)  the candy shell surrounding the chocolate in a piece of M&M candy.

Question 4

There is a mutation in a promoter next to a gene such that RNA polymerase can never bind. What steps must occur for the gene to be transcribed?

Accepted Answer

A)  An activator protein must bind an enhancer. 
B)  The DNA must physically bend so that the activator is close to the promoter. 
C)  Transcription factors must bind to the activator and promoter. 
D)  Transcription will never take place in this specific example. 
A)  An activator protein must bind an enhancer. 
B)  The DNA must physically bend so that the activator is close to the promoter. 
C)  Transcription factors must bind to the activator and promoter. 
D)  Transcription will never take place in this specific example.

Exam 11: How Genes Are Controlled

Yeasts are able to communicate with each other

Cancer of the colon is caused by

The relationship between DNA and histones is most like

There is a mutation in a promoter next to a gene such that RNA polymerase can never bind. What steps must occur for the gene to be transcribed?

Biology: Exploring Life

The Chemical Basis of Life

The Molecules of Cells

A Tour of the Cell

The Working Cell

How Cells Harvest Chemical Energy

Photosynthesis: Using Light to Make Food

The Cellular Basis of Reproduction and Inheritance

Patterns of Inheritance

Molecular Biology of the Gene

DNA Technology and Genomics

How Populations Evolve

The Origin of Species

Tracing Evolutionary History

Microbial Life: Prokaryotes and Protists

The Evolution of Plant and Fungal Diversity

The Evolution of Invertebrate Diversity

The Evolution of Vertebrate Diversity

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Gas Exchange

Circulation

The Immune System

Control of Body Temperature and Water Balance

Hormones and the Endocrine System

Reproduction and Embryonic Development

Nervous Systems

The Senses

How Animals Move

Plant Structure, Growth, and Reproduction

Plant Nutrition and Transport

Control Systems in Plants

The Biosphere: an Introduction to Earths Diverse Environments

Behavioral Adaptations to the Environment

Population Ecology

Communities and Ecosystems

Conservation Biology

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