The mean (µ) and standard deviation (σ) of body size in a Drosophila population are 8.5 and 2.2 mm, respectively. Under natural selection over many generations the µ and σ […]
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
Which Assumption Supports Hardy-Weinberg Equilibrium? Understanding the Role of Random Mating
Which of the following assumption support the Hardy-Weinberg Equilibrium? (1) Presence of Natural Selection (2) Random mating. (3) Genetic Drift. (4) Assortative mating Which Assumption Supports Hardy-Weinberg Equilibrium? Understanding […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Heterozygote Advantage: The Natural Selection Mechanism That Preserves Genetic Diversity
Under which condition of natural selection no allele would be lost when (1) Any one homozygote is favored (2) Both homozygote are favored (3) Heterozygote are favored (4) Heterozygote is […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Which Is NOT an Assumption of the Hardy-Weinberg Model? Clarifying Key Population Genetics Concepts
Which of the following is NOT an assumption of the Hardy-Weinberg model? (1) Population mates at random with respect to the locus in question (2) Selection is not acting on […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Cyclic Selection: How “Rock-Paper-Scissors” Dynamics Maintain Biodiversity in Nature
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 […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
When Does the Hardy-Weinberg Law NOT Apply? Understanding the Limits of Genetic Equilibrium
Under which condition Hardy-Weinberg law will NOT operate? (1) 3 alleles are involved (2) Alleles are X-linked (3) Skewed sex ratio (4) Population is tetraploid When Does the Hardy-Weinberg […]
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 EVOLUTION AND BEHAVIOUR
Which Is NOT an Assumption of the Hardy-Weinberg Rule? Understanding Population Genetics Foundations
Among the following which is not an assumption of Hardy-Weinberg rule (1) Small population size (2) Random mating (3) No natural selection (4) No mutation Which Is NOT an […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Calculating the Number of Carriers in a Population Using Hardy-Weinberg Equilibrium
A population of 200 is in Hardy-Weinberg equilibrium with allele frequency of ‘A’ = 0.7 and ‘a’ 0.3. The number of carriers in population will be (1) 18 (2) 42 […]
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 […]
