The morphological modification is transferred to nextgeneration without any present application which mayprove beneficial in changed environment is termed as (1) Exadaptation (2) Pre-adaptation (3) Analogous (4) Paralogous Introduction Evolution […]
Category: CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Clarifying the Use of Genes in Plant Molecular Systematics: Myths and Facts About mtDNA, cpDNA, and rDNA
Given are some statements with reference to the use of genes in plant molecular systematics. A. mtDNA are not preferred over cpDNA or rDNA because they generally show slow rate […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Darwin’s Beagle Voyage: Why the Flora of Tropical America Most Resembles Temperate America
During Beagle voyage of Charles Darwin he observed that the flora of tropical America is most similar to- (1) Asia (2) Temperate America (3) Europe (4) Australia Introduction Charles Darwin’s […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
August Weismann and the Germplasm Theory: Foundations of Modern Genetics
Germplasm theory was proposed by- (1) Dobszzhanky (2) Weismann (3) Meyer (4) Mendel Introduction The study of heredity has undergone remarkable transformations over the centuries. One of the most pivotal […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Maximum Parsimony in Cladograms: Identifying Equally Most Parsimonious Trees
In the cladograms given below each nucleotide change is indicated by a black bar Which one of the following options represents two equally most parsimonious trees? (1) A and B […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Iterative Evolution: How Traits Re-Emerge from the Same Ancestral Lineage Across Time
The repeated evolution of a specific trait or body plan from the same ancestor lineage but at different times is termed as (1) Iterative evolution (2) Convergent evolution (3) Coevolution […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Cuvier’s Theory of Catastrophism: How Catastrophic Events Shaped Life on Earth
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 […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Horizontal Gene Transfer: The Key to Conflicting Phylogenetic Trees in the Tree of Life
When James R Brown and W Ford Doolittle (1997) reconstructed the tree of life using a variety of different genes, they found that different genes gave fundamentally different phylogenies as […]
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 EVOLUTION AND BEHAVIOUR
Decoding the Evolutionary Relationships Among Bacteria, Archaea, and Eukarya: Insights from Phylogenetic Trees
In the phylogenetic tree above, branch-lengths are drawn proportional to the number of changes along a lineage. The following inferences were made from this tree. (A) Bacteria are more closely […]
