Which one of the following statements regarding ‘Endosymbiotic hypothesis of origin of eukaryotes’ is INCORRECT? (1) Mitochondria arose from an α-proteobacterium and plastids arose from cyanobacteria. (2) The event of […]
Tag: CSIR NET Life Science Previous Year Questions and Solution on Origin of cell and Unicellular Evolution
CSIR NET Life Science Previous Year Questions and Solution on Origin of cell and Unicellular Evolution
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CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Chronological Order of Key Events in the History of Life: From Molecules to Cells
Among the following events in history of life a. prokaryotic cell b. eukaryotic cell c. natural selection d. organic molecules e. self replicating molecule Which is the correct chronological order? […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Where Did Life Originate? Recent Studies on Archaea Point to Deep Hydrothermal Vents
Recent studies on Archaea suggest that life could haveoriginated (1) extra terrestrially and seeded through meteoriteimpacts. (2) in shallow coastal areas. (3) in deep hydrothermal vents. (4) in hot, terrestrial […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
What Was Missing? The Essential Ingredient Forgotten in a Miller-Urey Experiment Replication
You wanted to conduct Miller-Urey experiment and used a simplified apparatus with Tungsten electrodes. You heated the glassware at 5000C for 3 hours to remove any organic contaminants. Gases NH3, […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Why Were the First Living Beings on Earth Anaerobic? The Role of Oxygen and Early Atmosphere
The first living beings on earth were anaerobic because (1) There was no oxygen in air (2) oxygen damages proteins (3) oxygen interferes with the action of ribozymes (4) they […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Why Did Complex Eukaryotic Cells Evolve? The Role of Energy Efficiency and Cellular Organization
Complex eukaryotic cells may have evolved fromsimpler prokaryotic cells because complexity oforganization increases the (1) growth rate (2) efficiency of energy utilization (3) tolerance to starvation (4) Ability to attain […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
The Main Source of Earth’s Oxygen: How Photosynthesis Transformed the Planet’s Atmosphere
During the early origin of earth oxygen was absent in environment. Later on the oxygen increased and reached to present level. The main source of oxygen was (1) Photosynthesis (2) […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Amino Acids: The First Biomolecules Synthesized in the Lab to Explain the Origin of Life
To explain origin of life the first biomolecule generated under lab condition were (1) Amino acids (2) Nucleic acids (3) Carbohydrates (4) Lipids The Challenge of Explaining Life’s Origins The […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Coacervates: The Bubble-Like Structures Central to Oparin’s Theory of Life’s Origin
The term used for bubble like structure generatedduring early process of origin of life by Oparin is (1) Protobionts (2) Probiont (3) Micelles (4) Coacervates The Quest for Life’s Origins: […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Which Biomolecule Can Self-Replicate? Exploring the Unique Property of Nucleic Acids
Which biomolecule has property of self replication? (1) Protein (2) Carbohydrate (3) Lipids (4) Nucleic Acid The Four Major Biomolecules: An Overview Before identifying which biomolecule can self-replicate, it […]
