GATE XL Life Sciences Zoology Model Question Paper 05


Zoology GATE Question Paper


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Welcome to GATE XL 2018 (GATE XL Zoology Mock Test 05)

This Mock Test consists of 15 questions in MCQ format. At the end of the mock test, you have to click on the 'SUBMIT' button to see your Score and the Correct Answers

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1. Change in the allele frequency at species or below species level can be termed as:
2. The most probable limiting factor for primary productivity in an aquatic ecosystem is:
3. In spite of the prevalence of herbivory, the earth continues to be largely green because:
4. The rate of molecular evolution would be least in:
5. 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 be heterozygous (bB)?
6. A plant with genotype r+h+/ r‐h‐ was test crossed. Out of the total 280 progenies, 260 are r+h+/ r‐h‐ and r‐h‐/ r‐h‐. Then the recombination frequency will be:
7. The C-value paradox suggest the:
8. In sexually reproducing organisms which is the most important barrier for the speciation?
9. Sustainable harvesting of a fish population growing logistically is done at:
10. Genetic mapping reveals that distance between two genes ‘A’ and ‘B’ is 10 cM. What is the chance of getting Aabb progeny if AaBb is test crossed?
11. Biomass turnover time is the ratio between biomass and productivity of an ecosystem. Which of the following forests should have highest biomass turnover time?
12. In a hybridization experiment, a plant shows phenotypic ratio of 15:1. How many genes control the trait for observed phenotypic ratio?
13. If all organisms in a population are triploid , then Hardy-Weinberg theorem applicable will be:
14. In a population of 10 million individuals birth rate is 19 per 1000 and death rate is 14 per 1000. The annual rise in the population would be:
15. Which factor is least responsible for genetic drift?

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