Question 1

Proteins that regulate gene expression by directly binding to the DNA are known as _____.

Accepted Answer

A)  transcription factors 
B)  translation factors 
C)  transposable elements 
D)  methylation 
E)  phosphorylation 
A)  transcription factors 
B)  translation factors 
C)  transposable elements 
D)  methylation 
E)  phosphorylation

Question 2

Homeotic genes are, in general, in control of _____.

Accepted Answer

A)  X chromosome inactivation 
B)  formation of major body parts 
C)  methylation of nucleotides 
D)  dosage compensation 
E)  sex determination 
A)  X chromosome inactivation 
B)  formation of major body parts 
C)  methylation of nucleotides 
D)  dosage compensation 
E)  sex determination

Question 3

The difference between normal and sickle-cell hemoglobin is _____.

Accepted Answer

A)  the number of amino acids in the molecule 
B)  the substitution of one amino acid for another 
C)  the number and orientation of the amino acid chains attached to the heme portion of the molecule 
D)  the number of oxygen molecules that can be carried 
E)  the types of blood cells that produce each protein 
A)  the number of amino acids in the molecule 
B)  the substitution of one amino acid for another 
C)  the number and orientation of the amino acid chains attached to the heme portion of the molecule 
D)  the number of oxygen molecules that can be carried 
E)  the types of blood cells that produce each protein

Question 4

How much of the human genome actually codes for protein products?

Accepted Answer

A)  2  percent 
B)  26  percent 
C)  48  percent 
D)  71  percent 
E)  100  percent 
A)  2  percent 
B)  26  percent 
C)  48  percent 
D)  71  percent 
E)  100  percent

Question 5

Epigenetics is most closely associated with _____.

Accepted Answer

A)  base-pair substitution 
B)  methylation 
C)  Barr bodies 
D)  hydrolysis 
E)  phosphorylation 
A)  base-pair substitution 
B)  methylation 
C)  Barr bodies 
D)  hydrolysis 
E)  phosphorylation

Question 6

Most homeotic genes encode _____; therefore, the protein products of these master genes are found in the _____.

Accepted Answer

A)  stop codons; ribosomes 
B)  transcription factors; nucleus 
C)  transcription factors; extracellular matrix 
D)  splicing proteins; endoplasmic reticulum 
E)  energy-releasing proteins; mitochondria 
A)  stop codons; ribosomes 
B)  transcription factors; nucleus 
C)  transcription factors; extracellular matrix 
D)  splicing proteins; endoplasmic reticulum 
E)  energy-releasing proteins; mitochondria

Proteins that regulate gene expression by directly binding to the DNA are known as _____.

Homeotic genes are, in general, in control of _____.

The difference between normal and sickle-cell hemoglobin is _____.

How much of the human genome actually codes for protein products?

Epigenetics is most closely associated with _____.

Most homeotic genes encode _; therefore, the protein products of these master genes are found in the _.

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Photosynthesis

Releasing Chemical Energy

Dna Structure and Function

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Prokaryotes, Protists, and Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Animal Reproduction and Development

Plant Form and Function

Life Cycles of Flowering Plants

Filters

Exam 8: Gene Expression and Control

Proteins that regulate gene expression by directly binding to the DNA are known as _____.

Homeotic genes are, in general, in control of _____.

The difference between normal and sickle-cell hemoglobin is _____.

How much of the human genome actually codes for protein products?

Epigenetics is most closely associated with _____.

Most homeotic genes encode _____; therefore, the protein products of these master genes are found in the _____.

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Photosynthesis

Releasing Chemical Energy

Dna Structure and Function

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Prokaryotes, Protists, and Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Animal Reproduction and Development

Plant Form and Function

Life Cycles of Flowering Plants

Filters

Most homeotic genes encode _; therefore, the protein products of these master genes are found in the _.