Class 12 Biology MCQs Multiple Choice Questions with Answers

MCQ Questions for Class 12 Biology Chapter 16 Environmental Issues with Answers Question 1. Which chemical substance affects the Ozone Layer? (a) Chlorofluorocarbon (b) Chlorine (c) Hexafluorocarbon (d) Molecular Carbon Answer Answer: (a) Chlorofluorocarbon Question 2. In Ozone Degradation which element acts as catalyst? (a) Chlorine (b) Flurine (c) Oxygen Read more…

MCQ Questions for Class 12 Biology Chapter 15 Biodiversity and Conservation with Answers Question 1. Lion-tailed Macaque is found in: (a) Western Ghats (b) Caucasus (c) Eastern Ghats (d) Western Himalaya Answer Answer: (a) Western Ghats Question 2. Project tiger in India was started in the year: (a) 1973 (b) Read more…

MCQ Questions for Class 12 Biology Chapter 14 Ecosystem with Answers Question 1. Who introduced term Ecosystem? (a) Leaneous (b) Reiter (c) Odum (d) Aristle Answer Answer: (b) Reiter Question 2. Soil developed from sedimented rock: (a) Force Science (b) Edaphology (c) Pedogenesis (d) All of these Answer Answer: (c) Read more…

MCQ Questions for Class 12 Biology Chapter 13 Organisms and Populations with Answers Question 1. Habitat together with functions of a species constitute its: (a) Topography (b) Trophic level (c) Boundary (d) Ecological niche Answer Answer: (d) Ecological niche Question 2. The maximum growth rate occurs in : (a) Lag Read more…

MCQ Questions for Class 12 Biology Chapter 12 Biotechnology and its Applications with Answers Question 1. Restriction Endonuclease used in RDT obtained from: (a) Plasmid (b) Bacterial ceils (c) Bacterophages (d) All Prokaryotic cells Answer Answer: (b) Bacterial ceils Question 2. Recombinant DNA technology discovered by: (a) Hargobind Khoorana (b) Read more…

MCQ Questions for Class 12 Biology Chapter 11 Biotechnology: Principles and Processes with Answers Question 1. Transgenic plants are develop by: (a) Introducing of foreign fenes (b) Clone and genetically modified genes (c) Genetic engineering (d) Purified genes Answer Answer: (a) Introducing of foreign fenes Question 2. Two microbes found Read more…

MCQ Questions for Class 12 Biology Chapter 10 Microbes in Human Welfare with Answers Question 1. Bacillus thuringiensis (Bt) strains have been used for designing novel: (a) Bio-metallurigcal techniques (b) Bio-mineralization process (c) Bio-insecticidal plants (d) Bio-fertilizers Answer Answer: (c) Bio-insecticidal plants Question 2. Streptococcus is used in the preparation Read more…

MCQ Questions for Class 12 Biology Chapter 9 Strategies for Enhancement in Food Production with Answers Question 1. Zoological name of Indian buffalo is: (a) Bubalus bubalus (b) Bos indicus (c) Bos taurus (d) Gallusgallus Answer Answer: (a) Bubalus bubalus Question 2. The best milk breed in the world is: Read more…

MCQ Questions for Class 12 Biology Chapter 8 Human Health and Disease with Answers Question 1. Pain-killer drugs: (a) Makes Tissue (b) Relieve from pain (c) Relieve from tired (d) Pain creater Answer Answer: (c) Relieve from tired Question 2. AIDS caused by: (a) By fungus (b) By Virus (c) Read more…

MCQ Questions for Class 12 Biology Chapter 7 Evolution with Answers Question 1. Missing link in evolution is: (a) Pheretima (b) Limulus (c) Peripatus (d) Archaeopterys Answer Answer: (d) Archaeopterys Question 2. Hardy-Weinberg principle explains : (a) Chromosomal (b) Genetic drift (c) Genetic equilibrium (d) All of these Answer Answer: Read more…