Download CBSE Class 12 Biology Question Papers
Explore authentic exam materials through the CBSE Class 12 Biology Question Paper 2020 Set 02. Tailored for Class 12 learners, utilizing these Biology previous year papers ensures thorough preparation and strengthens time management skills before final CBSE evaluations.
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CBSE Class 12 Biology Question Paper 2020 Set B. Students can download the last year board exams question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.
SECTION – A
1. What is the genetic cause of Turner’s syndrome?
2. What is the role of nonsense or stop codons in protein synthesis?
3. Give the technical term for foetal sex determination test based on the chromosomal pattern in the amniotic fluid surrounding the developing embryo.
4. Why is gene encoding for ‘cry’ protein inserted into a crop plant?
5. Name the organism from which Ti plasmid is isolated.
SECTION – B
6. What is the role of lysing enzyme in Biotechnology?
7. Why is C.N.G. better than diesel in automobiles?
8. Draw a labelled diagram of any one of the following :-
Human Sperm
(OR)
Male gametophyte of angiosperms.
9. What is meant by Biotic potential?
10. Explain any two methods of ART that has helped childless couples to bear children.
SECTION – C
11. Write down the function of each of the following:-
a) Middle piece in human sperm
b) Luteinising hormone in human male
c) Acrosomal enzymes
12. a) Mention any four strategies adopted by flowering plants to prevent self pollination.
b) Why is Geitonogamy also referred to as genetical autogamy?
13. a) Explain and draw a cross. Can a child have blood group O if his parents have blood group A and B.
Please click the link below to download pdf file of CBSE Class 12 Biology Question Paper 2020 Set B
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Download CBSE Question Papers: Class 12 Biology
Class 12 Biology Past Exam Papers & Resources
Access structured past examination sets for Class 12 Biology. Solving the CBSE Class 12 Biology Question Paper 2020 Set 02 provided above helps students understand actual exam difficulty levels, question formats, and topic distributions for both descriptive and objective sections.
Importance of Solving CBSE Class 12 Biology Question Paper 2020 Set 02
Practicing past question sets under timed home conditions helps refine pacing and time management skills, ensuring you complete your Biology examination comfortably within the official duration.
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FAQs
The CBSE Class 12 Biology Question Paper 2020 Set 02 is available for download on StudiesToday.com. It includes complete set with all sections so that Class 12 students can practice with the exact same paper that came in the CBSE exams.
Yes, the solutions for CBSE Class 12 Biology Question Paper 2020 Set 02 are prepared by subject matter experts as per official marking scheme. Class 12 students will understand the structure of answers and 'step-marks' methodology Biology.
Solving previous year papers like CBSE Class 12 Biology Question Paper 2020 Set 02 is important to understand repeat themes and question difficulty levels of Biology. It helps Class 12 students to test their time management skills too.
Yes, where applicable, CBSE Class 12 Biology Question Paper 2020 Set 02 is available in both English and Hindi mediums. All students from Class 12 can access Biology study material in their preferred language.
No, all previous year question papers on StudiesToday, including CBSE Class 12 Biology Question Paper 2020 Set 02, are provided free of charge in mobile-friendly PDF.