CBSE Class 12 Biology Evolution Question Bank

Read and download the CBSE Class 12 Biology Evolution Question Bank. Designed for 2025-26, this advanced study material provides Class 12 Biology students with detailed revision notes, sure-shot questions, and detailed answers. Prepared by expert teachers and they follow the latest CBSE, NCERT, and KVS guidelines to ensure you get best scores.

Advanced Study Material for Class 12 Biology Chapter 6 Evolution

To achieve a high score in Biology, students must go beyond standard textbooks. This Class 12 Chapter 6 Evolution study material includes conceptual summaries and solved practice questions to improve you understanding.

Class 12 Biology Chapter 6 Evolution Notes and Questions

 

CBSE Class 12 Biology Evolution Question Bank. There are many more useful educational material which the students can download in pdf format and use them for studies. Study material like concept maps, important and sure shot question banks, quick to learn flash cards, flow charts, mind maps, teacher notes, important formulas, past examinations question bank, important concepts taught by teachers. Students can download these useful educational material free and use them to get better marks in examinations.  Also refer to other worksheets for the same chapter and other subjects too. Use them for better understanding of the subjects.

BIOLOGY
 1 Mark Questions
1. Identify the examples of convergent evolution from the following:
(a) Flippers of penguins and dolphins.
(b) Eyes of octopus and mammals
© Vertebrate brains
2. What did Louis Pasteur's experiments on 'killed yeast' demonstrate? Name the theory that got disproved on the basis of his experiment.
3. Coelacanth was caught in 1938 in South Africa. Why is it very significant in the evolutionary history of vertebrates?
4. List the two characteristics of mutation that help in explaining evolution according to De Vries.
5. Why are lichens regarded as pollution indicators?
6. Pick out the ancestral line of Angiosperms from the list give below: Conifers, Seed ferns, Cycads, Ferns.
7. Mention the type of evolution that has brought the similarity as seen in potato tuber and sweet potato.
 2 Marks Questions
1. List the two main propositions of Oparin and Haldane
2. How does paleontological evidence support evolution of organisms on Earth?
3. What does the comparison between the eyes of Octopus and those of mammals say about their ancestry and evolution?
4. Categories the following pairs of examples as convergent or divergent evolutions:
(a) Eyes of octopus and mammals.
(b) Wings of butterfly and birds.
(c) Tuber of sweet potatoes and potato.
(d) Thorns in bougainvillea and tendrils in cucurbits.
5. How do Darwin's finches illustrate adaptive radiation?
6. How does fitness of a population help in evolution?
7. How is generic drift different from gene migration? Explain.
3 Marks Questions
1. State the theory of abiogenesis. How does miller's experiment support this theory?
2. Evolution is the change of gene frequencies in a population in response to changes in environment in the time scale of years and not enturies. Justify the statement with reference to DDT.How does the theory of Hugo de varies support this?
3. How did Darwin theory of natural selection explain the appearance of new forms on the earth?
4 Marks Question
1 a) How does hardy Weinberg equation explain the genetic equilibrium?
b)Describe hoe this equilibrium gets disturbed which may lead to founder effect.
Value based Question
2. The giant squirrel (Ratufaindica) occurs along the west coast. The population living in moist deciduous forests of Maharashtra has light brown fur, the population living in the dry deciduous forests of Gujarat has a yellow fur and of living in the wet evergreen forest of Kerala has chocolate brown fur.
a) Give reasons for the difference in the fur color of the squirrels.
b) How would you justify that despite these differences they all belong to same species?
c) What value is indicated in this?

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CBSE Class 12 Biology Chapter 6 Evolution Study Material

Students can find all the important study material for Chapter 6 Evolution on this page. This collection includes detailed notes, Mind Maps for quick revision, and Sure Shot Questions that will come in your CBSE exams. This material has been strictly prepared on the latest 2026 syllabus for Class 12 Biology. Our expert teachers always suggest you to use these tools daily to make your learning easier and faster.

Chapter 6 Evolution Expert Notes & Solved Exam Questions

Our teachers have used the latest official NCERT book for Class 12 Biology to prepare these study material. We have included previous year examination questions and also step-by-step solutions to help you understand the marking scheme too. After reading the above chapter notes and solved questions also solve the practice problems and then compare your work with our NCERT solutions for Class 12 Biology.

Complete Revision for Biology

To get the best marks in your Class 12 exams you should use Biology Sample Papers along with these chapter notes. Daily practicing with our online MCQ Tests for Chapter 6 Evolution will also help you improve your speed and accuracy. All the study material provided on studiestoday.com is free and updated regularly to help Class 12 students stay ahead in their studies and feel confident during their school tests.

What is included in the advanced study material for Class 12 Biology Chapter Chapter 6 Evolution?

Our advanced study package for Chapter Chapter 6 Evolution includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure Class 12 students learn as per syllabus for 2026 exams.

How do Mind Maps for Biology Chapter Chapter 6 Evolution help in revision?

The Mind Maps provided for Chapter Chapter 6 Evolution act as visual anchors which will help faster recall during high-pressure exams.

Are these Biology resources suitable for both classroom teaching and self-study?

Yes, teachers use our Class 12 Biology resources for lesson planning as they are in simple language and have lot of solved examples.

Is this advanced study material for Chapter Chapter 6 Evolution free to download in PDF?

Yes, You can download the complete, mobile-friendly PDF of the Biology Chapter Chapter 6 Evolution advanced resources for free.

Does this material cover rationalized content for the 2025-26 CBSE session?

Yes, our subject matter experts have updated the Chapter Chapter 6 Evolution material to align with the rationalized NCERT textbooks and have removed deleted topics and added new competency-based questions.