CuriousTab
Search
CuriousTab
Home
Aptitude
Computer
C Programming
C# Programming
C++ Programming
Database
Java Programming
Networking
Engineering
Biochemical Engineering
Biochemistry
Biotechnology
Chemical Engineering
Civil Engineering
Computer Science
Digital Electronics
Electrical Engineering
Electronics
Electronics and Communication Engineering
Mechanical Engineering
Microbiology
Technical Drawing
GK
Current Affairs
General Knowledge
Reasoning
Data Interpretation
Logical Reasoning
Non Verbal Reasoning
Verbal Ability
Verbal Reasoning
Exams
AIEEE
Bank Exams
CAT
GATE
IIT JEE
TOEFL
Jobs
Analyst
Bank PO
Database Administrator
IT Trainer
Network Engineer
Project Manager
Software Architect
DNA Structure and Replication problems
1. The DNA is negatively super coiled, complexes to histone,
Options
A. HU
B. HSP-1
C. H-NS
D. All of these
Show Answer
Scratch Pad
Discuss
Correct Answer: All of these
2. An important difference between eukaryotic and prokaryotic DNA replication is
Options
A. eukaryotic DNA polymerases are faster
B. more DNA polymerases are found in eukaryotes
C. multiple origins of replication in eukaryotes
D. RNA primers are not required in eukaryotes
Show Answer
Scratch Pad
Discuss
Correct Answer: multiple origins of replication in eukaryotes
3. What does ligase do during replication of DNA?
Options
A. Synthesizes the lagging strand
B. Makes copies of mRNA from DNA
C. Joins nicks in DNA strands
D. Digests mRNA when it is no longer needed
Show Answer
Scratch Pad
Discuss
Correct Answer: Joins nicks in DNA strands
4. Which will require a higher temperature to denature?
Options
A. DNA with a high G-C content
B. DNA with a high A-T content
C. RNA with a high G-C content
D. RNA with a high A-T content
Show Answer
Scratch Pad
Discuss
Correct Answer: DNA with a high G-C content
5. For the DNA replication in eukaryotes, the cell cycle consists of
Options
A. G1, G2 and M phases
B. S, G2 and M phases
C. G1,S, G2 and M phases
D. G2 and M phases
Show Answer
Scratch Pad
Discuss
Correct Answer: G1,S, G2 and M phases
6. DNA segments capable of moving from one place in the genome to another is known as
Options
A. transposons
B. retrovirus
C. introns
D. moving elements
Show Answer
Scratch Pad
Discuss
Correct Answer: transposons
7. DNA with a G-C content of 50% will melt at approximately
Options
A. 60°C
B. 70 °C
C. 90 °C
D. 100 °C
Show Answer
Scratch Pad
Discuss
Correct Answer: 90 °C
8. DNA replication in eukaryotes occurs only in
Options
A. G1 phase
B. S phase
C. G2 phase
D. M phase
Show Answer
Scratch Pad
Discuss
Correct Answer: S phase
9. Who's X-ray work aided Watson and Crick in their discovery of the double helix?
Options
A. W.H. Bragg
B. R. Franklin
C. L. Pauling
D. Leaderberg
Show Answer
Scratch Pad
Discuss
Correct Answer: R. Franklin
10. The B-DNA structure found in solution is a
Options
A. left-handed double helix of antiparallel chains (10 bp/turn)
B. right-handed double helix of antiparallel chains (?10 bp/turn)
C. left-handed zig-zag helix of antiparallel chains (10 bp/turn)
D. right-handed double helix of parallel chains (?10 bp/turn)
Show Answer
Scratch Pad
Discuss
Correct Answer: right-handed double helix of antiparallel chains (?10 bp/turn)
First
10
Last
More in Biochemistry:
Allosteric Effects
Amino Acid Metabolism
Anti Bodies
Antigen
ATP Synthesis and Fatty Acid Oxidation
Carbohydrate
Cell Signalling and Transduction
Cell Structure and Compartments
Chromatography
Disease Associated with Immune System
DNA Structure and Replication
Enzymes
FT IR Spectroscopy
Gas Chromatography
Gel Electrophoresis
Genetic Code and Regulation
Genetic Regulation Prokaryotes
Glycolysis
HPLC
Immune Response
Immune System
Immunological Techniques
Lipid
Membrane Structure and Functions
Minerals
Nitrogen Metabolism
NMR Spectroscopy
Nucleic Acids
Oxidative Phosphorylation
Photosynthesis and Respiration
Polymerase Chain Reaction
Protein and Nucleic Acid Interactions
Protein Purification
Protein Stability
Protein Structure
Protein Synthesis
Recombinant DNA Technology
RNA Structure
Spectroscopy
Structure and Properties of Amino Acids
Structure and Properties of Peptides
TCA Cycle
Thermodynamics and Free Energy
Transcription and Regulation
UV Luminance Spectroscopy
Vitamins and Coenzymes
Water, pH and Macromolecules