NCERT Class 12 Biology Chapter 6 Evolution MCQs & PYQ

In NCERT Class 12 Biology Chapter 6, titled "Evolution," students explore the process by which different species of organisms develop and adapt over time. The chapter covers key concepts like the theory of natural selection, Darwin’s theory of evolution, genetic drift, speciation, and evidences for evolution. Students also learn about molecular and morphological evidence supporting evolutionary theory and the mechanisms that drive evolutionary changes in populations.

This article provides a comprehensive resource for exam preparation. It includes sample MCQs and subjective questions for CBSE and CUET, alongside downloadable PDFs of Class 12 Biology Chapter 6 MCQs and previous year questions for detailed practice of NCERT Class 12 Evolution.

NCERT Class 12 Biology Chapters
Chapter 1: Sexual Reproduction in Flowering Plants	Chapter 2: Human Reproduction
Chapter 3: Reproductive Health	Chapter 4: Principles of Inheritance and Variation
Chapter 5: Molecular Basis of Inheritance	Chapter 7: Human Health and Disease
Chapter 8: Microbes in Human Welfare	Chapter 9: Biotechnology: Principles and Processes
Chapter 10: Biotechnology and its Applications	Chapter 11: Organisms and Populations
Chapter 12: Ecosystem	Chapter 13: Biodiversity and Conservation

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Class 12 Biology Chapter 6 MCQs

This question bank includes previous years' CUET and CBSE MCQs, along with questions curated by subject experts. Below are 5 sample multiple-choice questions (MCQs) for Class 12 Biology Chapter 6: Evolution. For the full set of 50 questions, download the PDF using the link provided below.

1.	Early Greek thinkers thought that units of life called spores were transferred to different planets including earth. Identify the term associated with the above. (a) Abiogenesis (b) Panspermia (c) Spontancous generation (d) Biogenesis
2.	Select the gases which combined with oxygen to form water, carbon dioxide and others organic compounds earlier on earth. (a) Ammonia and Methane (b) Ammonia and Hydrogen (c) Methane and Hydrogen (d) Methane and Ozone
3.	When the life appear on the earth after its formation? (a) After 200 million years (b) After 300 million years (c) After 500 million years (d) After 250 million years
4.	According to the early Greek thinkers, the unit of life which were transferred to different planets were- (a) Spores (b) Water (c) Oxygen (d) Methane
5.	Louis Pasteur by careful experimentation demonstrated that life comes from- (a) Killed yeast (b) Rotting matter (c) Other plants (d) Pre-existing life

Class 12 Biology Chapter 6 Subjective Questions Without Solutions

This question bank includes previous years' CBSE subjective questions (2 marks and above) without solutions, along with expert-curated questions. Below are 5 sample subjective questions for Class 12 Biology Chapter 6: Evolution. To access all questions, download the PDF from the link provided below.

1.	Explain how did the experiment conducted by S.L. Miller substantiate that life evolved from pre – existing organic molecules. (CBSE 2023, 3M)
2.	Study the diagrammatic representation of S.L. Miller’s experiment given below and answer the questions that follow : (a) How did S.L. Miller create the conditions which existed before the origin of any life on Earth? (b) Name the organic compound formed and collected at the end of his experiment. (c) Mention the kind of evolution his experiment supports. (CBSE 2020, 3M)
3.	Describe S.L. Miller’s experiment. Comment on the observations he made and his contribution towards the origin of life on Earth. (CBSE 2019, 5M)
4.	Charles Darwin during his famous sea voyage around the world in a ship (HMS Beagle) concluded that there has been gradual evolution of life. Answer the following questions : (a) What is his theory known as? Explain the salient features of his theory. (b) Name a scientist who arrived at a similar conclusion as that of Charles Darwin. (CBSE 2019, 3M)
5.	Wings of birds and wings of butterflies contribute to locomotion. Explain the type of evolution such organs are a result of. (CBSE 2020, 2M)

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Sub Areas of Chapter 6: Evolution

Chapter Name	Sub Topics
Evolution	6.1 Introduction
	6.2 Darwin’s Theory of Evolution
	6.3 Evidences for Evolution
	6.4 Variation and Adaptation
	6.5 Natural Selection and its Mechanisms
	6.6 Speciation
	6.7 Molecular Evolution
	6.8 Evolution in the Human Species

Review of NCERT Class 12 Biology Chapter 6

In NCERT Class 12 Biology Chapter 6, "Evolution," students delve into the mechanisms that have shaped the diversity of life on Earth. The chapter explores key evolutionary theories, including Darwin's theory of natural selection, and provides compelling evidence for the process of evolution, such as fossil records, anatomical similarities, and molecular evidence. Students also learn about the process of speciation, genetic drift, and the role of variation in adaptation.

By practicing MCQs and subjective questions, students can consolidate their understanding of evolutionary principles. Mastery of this chapter is crucial for understanding how life forms evolve over time and lays the foundation for higher studies in evolutionary biology, genetics, and environmental sciences.

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