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Published on: 13/05/2022
QB365 provides detailed and simple solution for every Creative Questions in class 12 Biology Subject. It will helps to get more idea about question pattern in every Creative questions with solution.
latest Creative QuestionsDownload Tamil Nadu 12th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Biology Test1.
Who am I?
(I) Father of Green Revolution.
(il) Father of Indian Green Revolution
2.
Write a short note on autopolyploidy with an example.
3.
Point out the objectives of plant breeding.
4.
What makes the Trichoderma an effective bio-pesticide?
5.
Name any three eminent plant breeders of Indian origin.
1.
(i) Dr. Norman E. Borlaug.
(ii) Dr. M.S. Swaminathan.
2.
When chromosome number is doubled by itself in the same plant, is called Autopolyploidy. Example: A triploid condition in sugar beets, apples and pear has resulted in the increase in vigour and fruit size, large root size, large leaves, flower, more seeds and sugar content in them. It also resulted in seedless tomato, apple, watermelon and orange
3.
i) To increase yield, vigour, and fertility of the crop.
ii) To increase tolerance to environmental condition, salinity, temperature, and drought.
iii) To prevent the premature falling of buds and fruits, etc.
iv) To improve synchronous maturity.
v) To develop resistance to pathogens and pests.
vi) To develop photosensitive and thermos-sensitive varieties.
4.
Trichoderma species are free-living fungi that are common in soil and root ecosystem. They have been recognized as bio-control agent for
(1) the control of plant disease
(2) ability to enhance root growth development
(3) crop productivity
(4) resistance to abiotic stress and
(5) uptake and use of nutrients.
5.
(a) Dr. M.S. Swaminathan
(b) C.T. Patel
(c) Dr. B.P. Pal
12th Standard Syllabus & Materials
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Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
Economics
Maths
Chemistry
Physics
Computer Technology
History
Accountancy
Tamil
English
French
Tamilnadu Stateboard Standards
