In a population with two alleles ‘B’ and ‘b’ having allele frequency 0.7 and 0.3 in Hardy-Weinberg equilibrium, how many individuals in a sample of 250 can be expected to […]
Category: CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
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
How to Calculate Allele Frequency Ratios for ABO Blood Groups: Understanding O, A, and B Distribution
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- July 2, 2025
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Frequency of blood group O in population is 25% and allele for Blood group A and B are equally frequent. What would be the ratio of Allele frequency between blood […]
Calculating Genotype Frequencies After One Generation of Random Mating: Hardy-Weinberg Application
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- July 2, 2025
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13. In a population frequency of A1 is 0.75 and A2 is 0.25. After one generation of random matting, the genotype frequency of A1 A1, A1 A2 and A2 A2 […]
Hardy-Weinberg Theorem for Triploid Organisms: Understanding Genotype Frequencies
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- July 2, 2025
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If organism is triploid, then Hardy-Weinberg theorem applicable for genotype frequency will be (1) (p+q)3=1 (2) (p+q+r)=1 (3) (p+q+r)3=1 (4) (p+q+r)2=1 Hardy-Weinberg Theorem for Triploid Organisms: Understanding Genotype Frequencies […]
What Do ‘p’ and ‘q’ Represent in the Hardy-Weinberg Equation? Understanding Allele Frequencies
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- July 2, 2025
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‘p’ and ‘q’ in Hard-Weinberg equation for equilibrium population represents (1) Genotype frequency (2) Allele frequency (3) Heterozygote frequency (4) Homozygote frequency What Do ‘p’ and ‘q’ Represent in […]
Calculating the Number of Individuals Affected by a Recessive Disease Using Hardy-Weinberg Law
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- July 2, 2025
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If the frequency of recessive allele causing disease in homozygous recessive condition in a population of 10,000 is 0.04, then the number people affected by disease will be (1) 16 […]
Calculating Heterozygote Frequency in Hardy-Weinberg Populations: Step-by-Step Guide
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- July 2, 2025
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In a population obeying Hardy-Weinberg equilibrium, the frequency of recessive allele is 0.88, while of dominant allele us 0.12. The frequency of heterozygotes in population will be- (1) 11.1 % […]
When Is Heterozygosity Highest? Understanding Allele Frequencies and Heterozygote Proportions
Consider alleles ‘A’ and ‘a’ in a population. The frequency of heterozygotes will be highest when: (1) Frequency of ‘A’ is more than frequency of ‘a’ (2) Frequency of ‘A’ […]
Hardy-Weinberg Law for Three Alleles: The Trinomial Expansion Explained
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- July 2, 2025
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If a gene have a three alleles namely p, q, r. Then Hardy- Weinberg law can be represented as- (1) (p+q+r)2 (2) (p+q+r)3 (3) (p+q+r) (4) (P+q)2 Hardy-Weinberg Law […]
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 […]









