1.Column A lists names of evolutionary biologists and column B lists descriptions of evolutionary mechanisms proposed by them in random order (1) A-(i), B-(ii), C-(iv), D-(iii) (2) A-(ii), B-(iii), C-(i), […]
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CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
What Is a Clade? Understanding Monophyletic Groups in Evolutionary Biology
A monophyletic group of organisms that is, composed of a common ancestor and all its lineal descendants on a phylogenetic tree are termed as (1) clade (2) cline (3) cluster […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Do Humans Evolve from Monkeys? Understanding the True Relationship Between Humans and Monkeys
At present, the relationship between human and monkey can be stated as (1) They both have common ancestors (2) Human have evolved from monkey (3) Both have very distinct phylogeny […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Understanding Orthologous Genes: The Cornerstone of Comparative Genomics
If a gene sequence in Species A is 95 % similar to gene sequence in Species B. Such genes are termed as (1) Orthologous (2) Perilogous (3) Paralogous (4) Allologous […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Polyphyletic Groups: When Phylogenetically Close Species Lack a Common Ancestor
A group of species which are phylogenetically closer but donot share common ancestor are regarded as (1) Monophyletic (2) Polyphyletic (3) Paraphyletic (4) Sympatric Polyphyletic Groups: When Phylogenetically Close […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Molecular Markers: The Gold Standard for Establishing Phylogenetic Relationships
Phylogenetic relationship can be best established by- (1) Allozymes (2) Alakaloids (3) Molecular markers (4) Morphology Molecular Markers: The Gold Standard for Establishing Phylogenetic Relationships Establishing accurate phylogenetic relationships—uncovering […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Which Molecular Markers Cannot Establish Phylogenetic Relationships? Understanding the Limits of tRNA Sequencing
Phylogenetic relationship among organisms cannot be established on basis of- (1) 5 S r-RNA (2) t-RNA sequencing (3) 16 S r-RNA (4) Mitochondrial DNA Which Molecular Markers Cannot Establish […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Human Phylogeny: The Role of Y Chromosome and Mitochondrial Genes in Tracing Ancestry
Human phylogeny is characterized by- (1) Y chromosome (2) Mitochondrial genes (3) Both 1 & 2 (4) VNTR Human Phylogeny: The Role of Y Chromosome and Mitochondrial Genes in […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
How to Investigate Gene Duplication in New Plant Species: Best Methods for Modern Genomics
Scientists discovered two new plant species. “A” and “B” that look similar except that, species “A” bears flowers and leaves that are twice the size of those in species “B”. […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
molecular clock, it was estimated that two species A and B must have diverged from their common ancestor
Using molecular clock, it was estimated that two species A and B must have diverged from their common ancestor about 9 x 106 years ago. If the rate of divergence […]
