Basic Zoology Questions and Answers
Basic Zoology Questions with Answers form a key part of general science aptitude questions and answers sections in competitive exams like RRB, SSC, and UPSC. This topic covers animal classification, physiology, reproduction, and adaptations. Practicing these science aptitude questions with explanations enhances conceptual clarity and boosts performance in exams. Zoology is an integral part of biological sciences, and understanding its basics improves analytical thinking in scientific contexts. Download Basic Zoology aptitude questions with solutions PDF or practice online to test your subject knowledge effectively.
Basic Zoology
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98 questions
21. The functional unit of contractile system in striated muscle is-
- Cross bridges
- Sarcomeres
- Myofibril
- Z-band
22. Globular proteins undergo structural changes in response to extremes of pH or temperature, is called-
- Renaturation
- Denaturation
- Combination
- Both (A) and (B)
23. The study of relationships between size and shape is known as-
- Allometry
- Heterochrony
- Isometry
- Allochrony
24. A localised tumour covered by connective tissue is called-
- Metastasis
- Neoplasm
- Benign tumour
- Malignant tumour
25. Hürthle cell is associated with-
- Thyroid gland
- Pituitary gland
- Adrenal gland
- Pancreas
26. A metastatic cancerous tumour is termed ‘sarcoma’, if the disorder is in-
- Immune system
- Epithelial cells
- Fibroblasts
- Circulatory system
27. Graft between isogenic individuals is known as-
- Syngraft
- Allograft
- Xenograft
- None of these
28. The most striking example of point mutation is found in a disorder called-
- Thalassemia
- Nightblindness
- Down’s syndrome
- Sickle-cell anaemia
29. The phenomenon of ‘industrial melanism’ demonstrates-
- Natural selection
- Induced mutation
- Reproductive isolation
- Geographical isolation
30. Overproduction of which of the following neurotransmitter has been associated with the mental disorder ‘Schizophrenia’ ?
- Acetylcholine
- GABA
- Dopamine
- Serotonin