CBSE Class 12 Biology Board Question Paper Solved 2018 Set 2

Scroll down for PDF

CBSE Class 12 Biology Board Question Paper Solved 2018 Set 2. Students can download the last year 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.

1. Mention the chemical change that proinsulin undergoes, to be able to act as mature insulin.

2. Write the names of the following :

(a) A 15 mya primate that was ape-like

(b) A 2 mya primate that lived in East African grasslands.

3. Name two diseases whose spread can be controlled by the eradication of Aedes mosquitoes

4. How do cytokine barriers provide innate immunity in humans ?

5. Write the dual purpose served by Deoxyribonucleoside triphosphates in polymerisation.

6. (a) Name the source plant of heroin drug. How is it obtained from the plant ?

(b) Write the effects of heroin on the human body.

7. Your advice is sought to improve the nitrogen content of the soil to be used for cultivation of a non-leguminous terrestrial crop.

(a) Recommend two microbes that can enrich the soil with nitrogen.

(b) Why do leguminous crops not require such enrichment of the soil ?

8. With the help of an algebraic equation, how did Hardy-Weinberg explain that in a given population the frequency of occurrence of alleles of a geneis supposed to remain the same through generations ?


Although a prokaryotic cell has no defined nucleus, yet DNA is not scattered throughout the cell. Explain.

Please click the link below to download pdf file of CBSE Class 12 Biology Board Question Paper Solved 2018 Set 2.


Click on the text For more study material for Biology please click here - Biology

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

CBSE Board Exam Date Sheet of class 10th and 12th

The Central Board of Secondary Education (CBSE) released the Date sheet of Class 10 and Class 12th 2020 examination on the official website The board examination of Class 12 will be conducted from 15 February to 30 March 2020, while the board examination...

CBSE Counseling for Board exam 2020 starts today

The 23rd psychological Counseling starts 1st February (today) for The Class10 and Class12 CBSE students and their parents, by the Central Board of Secondary Education (CBSE).    This Counseling service is cost-free and this counseling service will be available every...

Simple tips to Excel in Examinations

We are entering the last quarter of the Academic Session. With examinations just around the corner, I am sure all of us are carrying a mixed bag of Stress, Excitement, and Anxieties!! So, first and foremost- Let’s be Positive and Futuristic! It’s most important to...

Studies Today