CBSE Class 12 Biology Enhancement In Food Production Worksheet Set B

CBSE Class 12 Biology Enhancement in Food Production (2). CBSE issues sample papers every year for students for class 12 board exams. Students should solve the CBSE issued sample papers to understand the pattern of the question paper which will come in class 12 board exams this year. The sample papers have been provided with marking scheme. It’s always recommended to practice as many CBSE sample papers as possible before the board examinations. Sample papers should be always practiced in examination condition at home or school and the student should show the answers to teachers for checking or compare with the answers provided. Students can download the sample papers in pdf format free and score better marks in examinations. Refer to other links too for latest sample papers.


1 List any two economically important products for humans obtained from Apis indica.

2 How are the two following varieties of sugarcane different from each other?

i) Saccharum barberi ii) Saccharum officinarum

3 Mention the strategy used to increase homozygosity in cattle for desired traits.

4 Which one of the following used in apiculture?

Hilsa, Apis indica, Sonalika

5 Which of the following is the semi-dwarf wheat that is high yielding and disease resistant? Pusa Shubra, Kalyan sona, Ratna .

6 Define plant breeding.

7 Name the scientist who developed semi-dwarf varieties of wheat in Mexico.

8 Name two semi-dwarf varieties of wheat introduced into all wheat growing places of India.

9 Where was IR-8 developed?

10 Name two better yielding semi-dwarf varieties of rice developed in India.


11 MOET programme has helped in increasing the herd size of the desired variety of cattle. List the steps involved in conducting the programme.

12 Define inbreeding depression. How to overcome this?

13 Why is mutation breeding necessary for breeding for disease resistance?

14 What are SCPs? What is the significance of such a protein.

15 Which part of the plant is best suited for making virus-free plants and why?

16 What is meant by germplam collection? Why is it necessary? 


17 What is meant by biofortification? Write the objectives of biofortification?

18 Define each of the following:

a) Tissue culture

b) Explants

c) somaclones

19 Give one example of disease caused by each of fungi, bacteria and viruses in crop plants.


20 What is somatic hybridization? Explain the procedure. Mention any one use of somatic hybridization.

21 Briefly describe the steps involved in plant breeding.

Please click the link below to download full pdf file for CBSE Class 12 Biology Enhancement in Food Production (2).



Click to View or Download pdf file
Click for more Biology Study Material

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

Training Programme on the Alternative Academic Calendar

In view of the extraordinary situation prevailing in the world due to COVID-19 pandemic, the CBSE Board had announced the ‘Revised Academic Curriculum for classes 9- 12 for the session 2020-21’. The reduced topics will not be part of the internal assessment or for the...

CBSE Decision on Board Exam 2020

The Class 10 and 12 exams are cancelled, and results for both 10th and 12th would be declared by July 15 based on internal exams. CBSE Class 12 students would have the option to appear for the exams at a later date. CBSE has a scheme in which marks scored in past 3...

CBSE Reduced Syllabus Class 9 and 10

The prevailing health emergency in the country and at different parts of the world as well as the efforts to contain the spread of Covid-19 pandemic has resulted in loss of class room teaching due to closure of schools. Therefore the CBSE Board has decided to revise...

Internal Assessments and CBSE Reduced Syllabus

CBSE on 7th July 2020 had announced the ‘Revised Academic Curriculum for classes IX-XII for the session 2020-21’ to mitigate the effect of face to face learning loss due to the closure of schools to contain COVID-19 Pandemic. The rationalization of syllabus up to 30% ...

FAQs CBSE Board Exam Results Class 10 and 12

FAQs CBSE Board Exam Results Class 10 and 12 Q.1. What does the term RT in the marksheet mean? Ans.The term RT means REPEAT IN THEORY. This is the term used from 2020 instead of FAIL IN THEORY(FT) Q.2. What does the term RP in the marksheet mean? Ans.The term RP means...

CBSE Reduced Syllabus Class 11 and 12

CBSE has announced major reduction in the syllabus for class 11 and class 12. There has been major changes too in the main syllabus for class 11 and 12. The prevailing health emergency in the country and at different parts of the world as well as the efforts to contain...

Studies Today