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Practice Population and Quantitative Genetics - Evolution - Ecology and Evolution previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
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| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| Ecology and Evolution (EY) 2025 | 2025 | 2 | View paper |
| Ecology and Evolution (EY) 2024 | 2024 | 6 | View paper |
| Ecology and Evolution (EY) 2023 | 2023 | 4 | View paper |
| Ecology and Evolution (EY) 2022 | 2022 | 3 | View paper |
| Ecology and Evolution (EY) 2021 | 2021 | 4 | View paper |
| Ecology and Evolution (EY) 2020 | 2020 | 4 | View paper |
| Ecology and Evolution (EY) 2019 | 2019 | 2 | View paper |
| Ecology and Evolution (EY) 2018 | 2018 | 3 | View paper |
| Ecology and Evolution (EY) 2016 | 2016 | 6 | View paper |
| Ecology and Evolution (EY) 2015 | 2015 | 2 | View paper |
| Ecology and Evolution (EY) 2014 | 2014 | 3 | View paper |
Practice every matching question in batches of 20, with every available option.
Which of the following processes typically does NOT contribute to increase in genetic variation?
Natural populations often deviate from Hardy-Weinberg equilibrium. One possible reason for this is
Consider a diploid population at Hardy-Weinberg equilibrium. For a locus with two alleles, the frequency of the A1A1 genotype is 0.01. The frequency of heterozygotes A1A2 is ____ (answer up to 2 decimal places).
A large proportion of individuals in a particular population of humans carry the allele for colour-blindness. Assuming colour-blindness does not confer any evolutionary advantage, which of the following mechanisms CANNOT explain the unusual abundance of this allele?
Two true-breeding lines of a moth, one with black wings and the other with red wings, are crossed. All of the resulting offspring in the F1 generation had red wings. These offspring are crossed to produce the F2 generation of moths where the expected fraction of moths with black wings in the population is _____ (round off to two decimal places).
Which of the following processes contributes to an increase in genetic variation?
In a population of infinite size, the frequency of two alleles A1 and A2 at a neutral locus are the same. What are the expected genotype frequencies (A1A1, A1A2, A2A2) after 100 generations of random mating?
In a polyploidization event, tetraploid progeny were formed by diploid parents. Hybridization between the tetraploid and a diploid parent gave rise to sterile triploids. Which of the following best explains why these triploids were sterile?
A few years ago, a very small population of zebrafish became isolated by a newly built dam. As a result, which statement is most likely to be true about this population of zebrafish now?
In a population, there are two morphs, A and B, which reproduce at equal rates. A mutates to B with probability p1, and B mutates to A with probability p2 such that p1 ≫ p2 (that is, p1 is much greater than p2). Over time, which one of the following statements would be true about this population?
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