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GATE 2015 : Ecology and Evolution

18 pages, 55 questions, 2 questions with responses, 2 total responses,

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GATE 2015 ECOLOGY AND EVOLUTION - EY Q. 1 Q. 25 carry one mark each. Q.1 A genetic locus has only two alleles in a population. The frequency of heterozygotes in that population is 0.32. Assuming Hardy-Weinberg equilibrium, the frequency (in decimal notation, not in fractions or percentage) of the rarer allele is __________ Q.2 In a population of asexual organisms that remains at a constant size, an individual is expected to have an average of _____ reproducing offspring. Q.3 Which of the following processes captures the KEY DIFFERENCE between metapopulation versus single-population approaches to study population dynamics? (A) Births and Deaths (C) Immigration and Emigration Q.4 (B) Life history variation (D) Environmental and demographic stochasticity A researcher used a t-test on two samples of data and obtained the following statistics: sample tstatistic = 5.2, critical t-statistic = 2.3 (for the appropriate degrees of freedom and alpha level of 0.05). Based on this information, the researcher should conclude that (A) p < 0.05, reject the statistical null hypothesis (B) p < 0.05, fail to reject the statistical null hypothesis (C) p > 0.05, reject the statistical null hypothesis (D) p > 0.05, fail to reject the statistical null hypothesis Q.5 Among forests of the following states, tree diversity (e.g., species richness per unit area) is high in: P) Arunachal, Q) Haryana, R) Kerala, S) Punjab, T) Rajasthan. (A) P and Q Q.6 (B) Q and S (C) R, S, and T (D) P and R Many agriculturally important plants belong to which of the following families? P) Dipterocarpaceae, Q) Poaceae, R) Solanaceae, S) Verbenaceae (A) P and Q EY (B) Q and S (C) P and S (D) Q and R 1/18

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