EDITION LATEST UPDATE 2024 (Questions &
Answers) A+Grade
Table of Contents:
Chapter 1. Introduction to Cells
Chapter 2. Chemical Components of Cells
Chapter 3. Energy, Catalysis, and Biosynthesis
Chapter
4. Protein Structure and Function
Chapter 5. DNA and Chromosomes
Chapter 6. DNA Replication, Repair, and Recombination
Chapter 7. From DNA to Protein: How Cells Read the Genome
Chapter 8. Control of Gene Expression
Chapter 9. How Genes and Genomes Evolve
C
hapter 10. Manipulating Genes and Cells
Chapter 11. Membrane Structure
Chapter 12. Membrane Transport
Chapter 13. How Cells Obtain Energy from Food
Chapter 14. Energy Generation in Mitochondria and Chloroplasts
Chapter 15. Intracellular Compartments and Tr
ansport
Chapter 16. Cell Communication
,Chapter 17. Cytoskeleton
Chapter 18. Cell
-
Cycle Control and Cell Division
which of the following protein purification methods relies on antibodies?
A) column chromatography
B) high performance liquid chromatography
C) ion exchange chromatography
D) immunoaffinity chromatography
E) none of the above
D) immunoaffinity chromatography
spongiform encephalopathies like Creutzfeld-Jacob disease are caused by infectious
protein-only agents known as
A) retroviruses
B) muons
C) prions
D) trypanosomes
E) none of the above
C) prions
which of the following is NOT true of isoelectric focusing?
A) proteins are resolved based on their amino acid composition
B) at very high or low pH, all proteins will have a negative or positive charge, respectively
C) proteins are resolved by exposure to an electric field in a gel with a stable pH gradient
,D) proteins cease migrating when they reach their isoelectric point
E) none of the above (all are true)
E) none of the above (all are true)
an enzyme that REMOVES phosphates from other molecules is called a(n)
A) isomerase
B) ATPase
C) ligase
D) phosphatase
E) kinase
D) phosphatase
the human genome is approximately how many bp?
A) 3 x 10^7
B) 3 x 10^8
C) 3 x 10^9
D) 3 x 10^10
E) 3 x 10^11
C) 3 x 10^9
rounded to the nearest whole number, DNA wraps around the histone core particle
approximately
A) once
B) twice
C) thrice
D) four times
E) 10 times
B) twice
, which of the following is LEAST abundant in the human genome?
A) transposons
B) introns
C) exons
D) simple sequence repeats
E) segmental duplications
C) exons
which of the following histone modifications is most frequently associated with gene
expression?
A) phosphorylation
B) acetylation
C) ubiquitination
D) methylation
E) both B and C
B) acetylation
which of the following histone proteins is NOT part of the nucleosome core particle?
A) H1
B) H2a
C) H3
D) H4
E) none of the above (all are part of the nucleosome core particle)
A) H1
acetylation of histones occurs primarily on
A) H2A
B) H2B