In a population, alleles p and q are known to be in a ratio of 0.7p: 0.3q. At Hardy- Weinberg equilibrium how many heterozygotes (pq) can be expected in a […]
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CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Calculating Genotype Numbers in a Hardy-Weinberg Population: Red, Pink, and White Flowered Plants
In a population that is in a Hardy-Weinberg equilibrium, 40% of the plants are recessive homozygotes and produce white flowers (WF). If the total number of individuals in the population […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
How to Calculate the Number of Individuals Carrying At Least One Dominant Allele Using Hardy-Weinberg Equilibrium
in a random sample of 400 individuals from a population with allele of trait in Hardy-Weinberg equilibrium, 36 individuals are homozygous for allele α. How many individuals in the sample […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
How to Calculate the Frequency of Heterozygotes for Red Hair Using Hardy-Weinberg Equilibrium
Red hair is a recessive trait in human. In a randomly mating population in Hardy-Weinberg equilibrium approximately 9% of individuals are red- haired. What is the frequency of the heterozygotes? […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Calculating the Proportion of Homozygotes for Multiple Alleles in a Diploid Population
There are ‘n’ numbers of alleles at a given locus in a diploid population. The proportion of all homozygotes in the population (A) All alleles are equal abundant (B) All […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
How to Calculate Allele Frequencies from Genotype Data: Step-by-Step Hardy-Weinberg Example
In a population, the genotype frequencies are: f(A1A1) = 0.59; f(A1A2) = 0.16; f(A2A2) = 0.25. What are the frequencies of the two alleles at this locus? (1) A1=0.59 A2=41 […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
How to Calculate Allele Frequency and Expected Genotype Numbers: A Step-by-Step Guide
The following genotypes were observed in a population Genotype Number HH 90 Hh 60 hh 50 Which of the following is the correct frequency of H allele […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
How to Calculate the LN Allele Frequency in an M-N Blood Type Population
The frequency of M-N blood types in a population of 6129 individuals is as follows:The frequency of LN allele in this population is (1) 0.4605 (2) 0.2121 (3) 0.5395 (4) […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
Disruptive Selection: How Nature Favors Extremes and Drives Evolutionary Diversity
Selection in which two extreme phenotypes leave more offspring than the intermediate phenotype is called (1) directional selection. (2) disruptive selection. (3) stabilizing selection. (4) neutral selection. Correct answer: (2) […]
CSIR NET Life Science Previous Year Questions and Solution on Emergence of Evolutionary Thoughts
How Stabilizing Selection Maintains Both Alleles in a Population
If natural selection favors an average phenotype by selecting against extreme variation, under such condition (1) Both alleles will coexist in population (2) Only dominant alleles will exist (3) Only […]
