The Cuvier’s theory, which states that there had been several creations, each preceded by another due to some large scale geographical disturbances. Such theory is termed as- (1) Theory of […]
Tag: CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
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CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Why Gill Clefts Rarely Appear in Higher Animals: The Evolutionary Return of Ancestral Traits
Rarely there is occurrence of gill clefts in higher animals. The reason for this rare appearance is (1) They may be useful for that organism (2) Ancestral returns of that […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Early Embryonic Similarities Between Pig and Mouse: Evidence for Common Ancestry
Early embryonic stages of pig and mouse are almost identical, it reveals- (1) Common ancestry (2) Progressive evolution (3) Directional Evolution (4) Homoplasy Introduction The early stages of embryonic development […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Stable Cell Wall-Deficient Bacteria and the Proof of Adaptive Mutation: Understanding Bacterial Evolution
In an experiment bacterial cell wall was removed usingenzymatic methods. It was observed that on culturingsuch cell wall deficient bacteria, for many generations result into stable forms of bacteria permanently lacking cell […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
When Were the First Fossils Discovered? A Look at Fossil History Before Lamarck and Darwin
First fossils were discovered (1) Prior to both Lamarck and Darwin (2) Prior to Lamarck but after Darwin (3) After Lamarck but prior to Darwin (4) After Lamarck and Darwin […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
How Are Fossils Older Than 1 Million Years Dated? The Science Behind Determining Ancient Fossil Ages
Age of Fossils older than 1 million year ago is usuallydetermined by- (1) Sediment deposition (2) Mineral deposition (3) Radioactive decay of isotopes in fossil (4) Age of surrounding rock […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
How to Precisely Date Fossils Less Than 20,000 Years Old: The Role of Carbon/Nitrogen Radiometric Dating
Age of fossils lesser the 20,000 year old can be preciselyestimated by- (1) Carbon/Nitrogen (2) Potassium/Argon (3) Uranium/Lead (4) Uranium/Thorium Introduction Dating fossils accurately is crucial for understanding Earth’s history […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Why Fossils Are Generally Found in Sedimentary Rocks: The Science Explained
Fossils are gencambarally found in- (1) Sedimentary rocks (2) Igneous rocks (3) Metamorphic rocks (4) Ice Introduction Fossils are the preserved remains or traces of ancient life, offering a window […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Ginkgo biloba: The True Living Fossil Among Ancient Plants
Among the following the living fossil is- (1) Ginkgo biloba (2) Taxus bacata (3) Psilotum (4) Nepenthes khasiana Introduction The term living fossil describes an organism that has remained morphologically similar to […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Which Organism Is a Living Fossil? Understanding the Concept and Identifying the Right Example
Among the following the living fossil is- (1) Trilobite (2) Peripatus (3) Archaeopteryx (4) Dinosaurs Introduction The term living fossil is both fascinating and often misunderstood. It refers to living organisms that […]
