Major cause of evolution of genes and protein is (1) Point mutation (2) Chromosomal aberrations (3) Sexual reproduction (4) Gene duplication and divergence Gene Duplication and Divergence: The Major […]
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CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Why Is the Allele Frequency 0.5 in Different Populations? Understanding the Role of Neutral Alleles
Allele frequency of a particular allele was found to be 0.5 in three different populations. It is probably due to is (1) Neutral allele (2) Stable polymorphism (3) Heterozygote advantage […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
How Neutral Mutations Drive Molecular Distance in Evolution
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 […]
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) […]
