Question 1

Why must gene regulation be more complicated in eukaryotic cells when compared to prokaryotic cells?

Accepted Answer

Eukaryotic cells do not contain operons

Question 2

Describe the structure and function of the histone octamer.

Accepted Answer

The winding of DNA around a core of eigh

Question 3

What is a hypersensitive site in eukaryotic DNA?

Accepted Answer

A hypersensitive site is more susceptibl

Question 4

Which of the following elements is found in the active site of the Argonaute-miRNA complex?

Accepted Answer

A)  magnesium 
B)  calcium 
C)  zinc 
D)  iron 
E)  copper 
A)  magnesium 
B)  calcium 
C)  zinc 
D)  iron 
E)  copper

Question 5

What phenomenon allows for the generation of multiple distinct cell types?

Accepted Answer

A)  combinatorial control 
B)  enhancer control 
C)  promoter control 
D)  epigenetic control 
E)  None of the answers is correct. 
A)  combinatorial control 
B)  enhancer control 
C)  promoter control 
D)  epigenetic control 
E)  None of the answers is correct.

Question 6

Describe how the IRE-binding protein regulates ferritin levels when iron levels are low.

Accepted Answer

The mRNA for ferritin, an iron sequester

Question 7

Histones

Accepted Answer

A)  are basic. 
B)  constitute half the chromosome's mass. 
C)  serve to organize eukaryotic DNA. 
D)  All of the answers are correct. 
E)  None of the answers is correct. 
A)  are basic. 
B)  constitute half the chromosome's mass. 
C)  serve to organize eukaryotic DNA. 
D)  All of the answers are correct. 
E)  None of the answers is correct.

Question 8

The technique ______________________ has been used to show that in eukaryotes, chromatin structure blocks a large number of potential protein binding sites.

Accepted Answer

chromatin

Question 9

The interaction of many different protein factors to stimulate or repress transcription is called

Accepted Answer

A)  combinatorial control. 
B)  synergy. 
C)  hypomethylation effect. 
D)  enhancer control. 
E)  None of the answers is correct. 
A)  combinatorial control. 
B)  synergy. 
C)  hypomethylation effect. 
D)  enhancer control. 
E)  None of the answers is correct.

Question 10

The human genome contains genes for about _______________ proteins.

Accepted Answer

The answer of The human genome contains genes for about...

Exam 32: The Control of Gene Expression in Eukaryotes

Why must gene regulation be more complicated in eukaryotic cells when compared to prokaryotic cells?

Describe the structure and function of the histone octamer.

What is a hypersensitive site in eukaryotic DNA?

Which of the following elements is found in the active site of the Argonaute-miRNA complex?

What phenomenon allows for the generation of multiple distinct cell types?

Describe how the IRE-binding protein regulates ferritin levels when iron levels are low.

Histones

The technique ______________________ has been used to show that in eukaryotes, chromatin structure blocks a large number of potential protein binding sites.

The interaction of many different protein factors to stimulate or repress transcription is called

The human genome contains genes for about _______________ proteins.

Biochemistry: an Evolving Science

Protein Composition and Structure

Exploring Proteins and Proteomes

DNA, RNA, and the Flow of Genetic Information

Exploring Genes and Genomes

Exploring Evolution and Bioinformatics

Hemoglobin: a Portrait of a Protein in Action

Enzymes: Basic Concepts and Kinetics

Oxidative Phosphorylation

Catalytic Strategies

Regulatory Strategies

Carbohydrates

Lipids and Cell Membranes

Membrane Channels and Pumps

Signal-Transduction Pathways

Metabolism: Basic Concepts and Design

Glycolysis and Gluconeogenesis

The Citric Acid Cycle

The Light Reactions of Photosynthesis

The Calvin Cycle and the Pentose Phosphate Pathway

Glycogen Metabolism

Fatty Acid Metabolism

Protein Turnover and Amino Acid Catabolism

The Biosynthesis of Amino Acids

Nucleotide Biosynthesis

Biosynthesis of Membrane Lipids and Steroids

The Integration of Metabolism

DNA Replication, Repair, and Recombination

Rna Synthesis and Processing

Protein Synthesis

The Control of Gene Expression in Prokaryotes

Sensory Systems

The Immune System

Molecular Motors

Drug Development

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