UPSC Mains ZOOLOGY-PAPER-I 2018

28 Questions • 400 Marks • With Detailed Model Answers

1
10 Marks150 Wordsmedium
Protostomes and Deuterostomes
BiologyZoologyEvolution
2
10 Marks150 Wordsmedium
Peripatus
BiologyZoologyInvertebrates
3
10 Marks150 Wordsmedium
Paedomorphosis
BiologyEvolutionGenetics
4
10 Marks150 Wordsmedium
Status of Sphenodon
BiologyZoologyReptiles
5
10 Marks150 Wordsmedium
General characters of Cetaceans and Primates
BiologyZoologyMammals
6
20 Markshard
Describe the Integumentary derivatives in Mammals along with labelled diagrams.
BiologyZoologyMammals
7
15 Markshard
Give an account of the structure and life cycle of Wucheraria bancrofti. Add a note on the pathogenecity and control of the disease caused by this parasite.
BiologyParasitologyMedicine
8
15 Marksmedium
What is retrogressive metamorphosis? Give an illustrated account of this phenomenon in Herdmania. Also write a note on its affinities.
BiologyZoologyInvertebrates
9
20 Marksmedium
Describe different larval forms of Echinoderms and comment on their evolutionary significance.
BiologyZoologyInvertebrates
10
15 Markshard
Explain HPA axis. Draw a transverse section of the Adrenal gland and describe the functions of its different hormones.
BiologyPhysiologyEndocrinology
11
15 Markshard
Give an illustrated account of the life cycle of Plasmodium vivax.
BiologyParasitologyMedicine
12
20 Marksmedium
Give an illustrated account of different types of mouth parts in insects and write a note on their functional significance.
BiologyZoologyInvertebrates
13
15 Marksmedium
Give an account of Migration in birds. Add a note on the problems faced by them during migration.
BiologyZoologyOrnithology
14
15 Markshard
With the help of labelled diagrams only, explain the structure and different stages of the life cycle of Obelia (no description is required). With reference to Obelia, also explain the polymorphism and the status of metagenesis.
BiologyZoologyInvertebrates
15
10 Marks150 Wordsmedium
Ozone layer depletion
EnvironmentEcologyPollution
16
10 Marks150 Wordsmedium
Population dynamics
EcologyEnvironmentBiology
17
10 Marks150 Wordsmedium
Endemism with reference to India
EcologyEnvironmentBiodiversity
18
10 Marks150 Wordsmedium
Habituation and Conditioning
BiologyPsychologyBehavior
19
10 Marks150 Wordsmedium
PCR
BiologyGeneticsBiotechnology
20
20 Marksmedium
What is ecological succession? Give an account of the causes, types and general process of ecological succession in nature.
EcologyEnvironmentBiology
21
15 Marksmedium
What is eusocialism? Describe this phenomenon with reference to Honey Bees.
BiologyZoologyBehavior
22
15 Marksmedium
What is the systemic position of rice pest? Give an account of its life cycle and the damage caused by this pest. Write a note on the measure for its prevention and control.
AgricultureEcologyPest Control
23
20 Marksmedium
Give an account of sources, impacts and prevention of air pollution. Comment on Montreal and Kyoto protocol also.
EnvironmentEcologyPollution
24
15 Marksmedium
What is "Lac-culture"? Explain the methodology employed in lac-culture. Also describe the uses of lac.
AgricultureEcologyIndustry
25
15 Markshard
What is resolution of a microscope? Comment on the principles of SEM and TEM. Describe the structure, working and applications of any one of the electron microscope in biology.
BiologyBiotechnologyMicrobiology
26
20 Marksmedium
What is biological rhythm? Give an account of its types and characteristics. What is the role of different factors in their entrainment?
BiologyPhysiologyBehavior
27
15 Markshard
What is Chi-square test? Give a detailed account of the computation of Chi-square for tests of independence, homogeneity and goodness of fit using biological data.
StatisticsBiologyResearch Methodology
28
15 Marksmedium
Describe the structure of the pathogen responsible for AIDS. How it is transmitted? Also mention the pathogenesis and prevention of AIDS.
BiologyMedicineImmunology