With time molecular distance between organisms increases during evolution largely due to (1) Natural selection (2) Neutral Mutation (3) Random d rift (4) Point Mutations How Neutral Mutations Drive […]
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CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
The Molecular Clock Hypothesis: How Neutral Evolution Shapes Phylogenetic Relationships
With time molecular distance between organisms increases during evolution largely due to (1) Natural selection (2) Neutral Mutation (3) Random drift (4) Point Mutations The Molecular Clock Hypothesis: How […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
What Is a Pseudogene? Understanding the Inactive, Faulty Copies of Functional Genes
Inactive faulty copy of functional gene is called (1) Recessive gene (2) Pseudo gene (3) Null gene (4) Neutral gene What Is a Pseudogene? Understanding the Inactive, Faulty Copies […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Choosing the Right Radiometric Dating Techniques for Human and Dinosaur Fossils
A group of palaeontologists digging in an area discovers a pre-historic human burialsite. The same group, while exploring a nearby area, discovered fossil remains of what appeared to be more […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Out-of-Africa vs. Multiregional Hypothesis: Understanding Human Origins and Common Misconceptions
Given below are statements related to the two competing hypotheses on the origin of modern humans: the Out-of-Africa hypothesis and the multi-regional hypothesis. Which of the following statements is INCORRECT? […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Decoding the Human Evolutionary Tree: Identifying Denisovans, Homo habilis, Homo erectus, and Neanderthals
Following is a diagrammatic representation of human evolutionary tree .In the above diagram A, B, C and D respectively represent: (1) Denisovan, Homo habilis, Homo erectus, Homo neanderthalensis (2) Homo […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Fossil Records vs. Phylogeny: Rethinking the Evolutionary Timeline of Early Land Plants
According to fossil record, the earliest fossils of liverworts are found in late Devonian, of mosses in early cretaceous, and vascular plants in the later Silurian/early Devonian. Anthoceros (hornworts) fossils […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Matching Geological Time Periods to Major Extinction and Diversification Events: A Guide to Earth’s Mass Extinctions
Match the geological time period with the extinction or diversification events associated with them: (1) A-ii, B-i, C-iii, D-iv (2) A-iv, B-i, C-ii, D-iii (3) A-iii, B-ii, C-i, D-iv (4) […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Tracing the Arrival of Marsupials in Australia: Exploring Geological Timeframes and Migration Routes
Several distinct time periods and different routes might explain the entrance of marsupials into Australia. (i) Late Jurassic – early therians arrived in Antarctica – Australia where the marsupials subsequently […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Epochs of the Cenozoic Era: Mapping Major Evolutionary Events to Their Geological Timeline
Following is the list of some important events in the history of life and the names of the epochs of Cenozoic era. Events A. Angiosperm dominance increases; continue radiation of […]
