Official CBSE Exam Papers for Class 12 Biology
Access comprehensive previous year question papers for Class 12 Biology using the CBSE Class 12 Biology Question Paper 2019 Set 04. Designed to align with the 2026-27 CBSE academic guidelines, these solved papers help students assess their exam readiness and understand official marking schemes.
Solved Previous Year Papers for Biology
View or download the dedicated CBSE Class 12 Biology Question Paper 2019 Set 04 resource below. Engaging with these previous year papers under timed conditions ensures continuous academic progress and mastery of the 2026-27 exam format.
CBSE Class 12 Biology Question Paper 2019 Set D. 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. Name any two physiological barriers that provide innate immunity.
OR
Select two disease resistant crop varieties from the list of crop varieties given below :
Himgiri, Pusa Gaurav, Pusa Komal, Pusa A-4
2. Mention one example each from plants and animals exhibiting divergent evolution.
3. Name a human genetic disorder due to the following :
(a) An additional X-chromosome in a male
(b) Deletion of one X-chromosome in a female
OR
State what does aneuploidy lead to.
4. Give one reason to justify statutory ban on amniocentesis.
5. Name the pioneer species that invade in primary succession on bare rock and in water.
6. State ‘two’ observations made by German naturalist, Alexender von Humboldt during his extensive explorations in South American jungles.
Please click the link below to download pdf file of CBSE Class 12 Biology Question Paper 2019 Set D.
Free study material for Biology
CBSE Class 12 Biology Question Paper 2019 Set 04 & Previous Year Question Papers for Class 12 Biology
Understanding Exam Patterns with CBSE Class 12 Biology Question Paper 2019 Set 04
Access structured past examination sets for Class 12 Biology. Solving the CBSE Class 12 Biology Question Paper 2019 Set 04 provided above helps students understand actual exam difficulty levels, question formats, and topic distributions for both descriptive and objective sections.
Why Practice Class 12 Biology Question Papers?
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.
Additional Study Resources for Class 12 Biology
Wrap up your exam preparation by reviewing detailed answer keys and tackling additional practice sets. All resources on our platform are free to access.
FAQs
The CBSE Class 12 Biology Question Paper 2019 Set 04 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 2019 Set 04 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 2019 Set 04 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 2019 Set 04 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 2019 Set 04, are provided free of charge in mobile-friendly PDF.