Zoology IAS Paper 1 UPSC 2023 with Solutions
In this article, all questions of Zoology Optional Paper 1 are answered. Click on the question links to view the answers.
This article is part of Synopsis IAS Zoology Optional Course for UPSC IAS.
Zoology Paper 1 UPSC 2023 - Question Paper with Solutions
Click on the links for the solutions
Section - A
1. Write short notes on the following in about 15 Marks0 words each :
Zoology 1a Erythrocytic schizogony (IAS 2023/10 Marks)
Zoology 1b Statocyst of medusa (IAS 2023/10 Marks)
Zoology 1c Evolutionary status of Onychophora (IAS 2023/10 Marks)
Zoology 1d Neoteny (IAS 2023/10 Marks)
Zoology 1e Migration in birds (IAS 2023/10 Marks)
Zoology 2a Define conjugation. Explain the mechanism of conjugation in Paramecium. Also give its significance. (IAS 2023/20 Marks)
Zoology 2b Describe the different stages of life cycle of leech with the help of suitable diagram. (IAS 2023/15 Marks Marks)
Zoology 2c Describe the respiratory organs and mechanism of respiration in cockroach. (IAS 2023/15 Marks Marks)
Zoology 3a Explain the general features, life cycle and pathogenicity of Taenia. (IAS 2023/20 Marks)
Zoology 3b Give an illustrated account of origin of mammals. (IAS 2023/15 Marks Marks)
Zoology 3c Describe the perivisceral coelom and endoskeleton of Asterias. (IAS 2023/15 Marks Marks)
Zoology 4a Draw a well-labelled diagram of adrenal gland and discuss the functions of its hormones. (IAS 2023/20 Marks)
Zoology 4b Describe the general features and life cycle of Ascaris. (IAS 2023/15 Marks Marks)
Zoology 4c What are the skeletal elements of sponges? Describe the structure and types of various skeletal elements found in sponges. (IAS 2023/15 Marks Marks)
Section - B
5. Write short notes on the following in about 150 words each:
Zoology 5a Ecological niche (IAS 2023/10 Marks)
Zoology 5b Instinct behaviour in animals (IAS 2023/10 Marks)
Zoology 5c Pathogenesis of cholera (IAS 2023/10 Marks)
Zoology 5d Amniocentesis (IAS 2023/10 Marks)
Zoology 5e Lotka-Volterra model (IAS 2023/10 Marks)
Zoology 6a Define regression. Explain different methods and applications of regression analysis. (IAS 2023/20 Marks)
Zoology 6b Define food chain. Describe different types of food chain with suitable examples. (IAS 2023/15 Marks Marks)
Zoology 6c Describe the phenomenon of altruism and kinship in studying animal behaviour with suitable examples. (IAS 2023/15 Marks Marks)
Zoology 7a What is lac culture? Explain the life cycle of lac insect and describe cultivation and processing of lac in India. Also add a note on its economic importance. (IAS 2023/20 Marks)
Zoology 7b What is Project Tiger? Discuss the various threats and conservation strategies to protect tigers in India. (IAS 2023/15 Marks Marks)
Zoology 7c Define imprinting. Describe the mechanism of imprinting in animals with suitable examples. (IAS 2023/15 Marks Marks)
Zoology 8a What is ELISA? Explain the principle, types, procedure and applications of ELISA. (IAS 2023/20 Marks)
Zoology 8b Describe the symptoms, diagnosis, treatment and preventive measures of livestock diseases. (IAS 2023/15 Marks Marks)
Zoology 8c Define crypsis. Explain the types and mechanism of crypsis in animals with suitable examples. (IAS 2023/15 Marks)