Phenotype A has selective advantage over B, B has over C and C has over A. The condition is like “paper-scissor-rock”. Under such condition in nature (1) All phenotype would […]
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
Stabilizing Selection: How Nature Preserves the Average by Selecting Against Extremes
Natural selection against extreme phenotype is termed as (1) Directional selection (2) Diversifying selection (3) Disruptive selection (4) Stabilizing selection Introduction Natural selection shapes the diversity of life by favoring […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Disruptive Selection: The Evolutionary Force Favoring Extremes Over Intermediates
If the two extreme morphological forms are favored against heterozygotes, such a selection is termed as (1) Disruptive (2) Directional (3) Stabilizing (4) Cyclic Introduction Evolution shapes populations in remarkable […]
CSIR NET Life Science Previous Year Questions and Solution on Origin of cell and Unicellular Evolution
Disruptive Selection: The Evolutionary Force Favoring Extremes Over Intermediates
Self-cross between Aa results in AA, Aa & aa F1 progenies, the force of evolution preserving either AA or aa is- (1) Stabilizing selection (2) Cyclic (3) Disruptive (4) Directional […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Heterozygote Advantage: The Evolutionary Benefit Behind Sickle Cell Trait and Malaria Resistance
A person heterozygous for sickle cell anemia has advantage for both malaria and sickle cell anemia. It illustrates (1) Directional selection (2) Heterozygote advantage (3) Disruptive selection (4) Directed mutation […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Stabilizing Selection: The Evolutionary Force That Maintains the Mean
Selection which operates against any direction and donot allow to disrupt the existing mean is termed as (1) Directional (2) Stabilizing (3) Disruptive (4) Balancing Introduction In the grand tapestry […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Stabilizing Selection: How Nature Favors the Average by Eliminating Extremes
Type of selection in which there is elimination of extremes is termed as (1) Directional selection (2) Disruptive selection (3) Stabilizing selection (4) Cyclic selection Introduction In the world of […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Identifying Analogous Structures: Wings, Tendrils, Tubers, and Fins Explained
Given below are proposed analogous structures among organisms A. wings of birds and bats B. wings of bats and tetrapod digits C. tendrils of vitis and tendrils of pumpkin D. […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Adaptive Radiation: Divergent Evolution and the Drivers of Species Diversification
The following statements were made about adaptive radiation: (A) Adaptive radiation is a kind of divergent evolution driven by ecological diversification. (B) Adaptive radiation is the divergence of unrelated taxa […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Adaptive Radiation: The Formation of Various Species from a Common Ancestor
Formation of various species from one common ancestor is termed as (1) Adaptive radiation (2) Phylogeny (3) Cladistics (4) Natural selection Introduction Adaptive radiation is a fundamental evolutionary process that […]
