12th Standard Syllabus & Materials
12th Standard
TN 12th English Poem - 6 - Incident of the French Camp Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th English Prose - 6 - On the Rule of the Road Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th English Prose - 5 - The Chair Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th English Supplementary - 4 - The Midnight Visitor Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th English Poem - 4 - Ulysses Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th English Prose - 4 - The Summit Sample Question Papers Study Material - QB365 Set A
Published on: 13/05/2022
QB365 provides detailed and simple solution for every book back questions in class 12 Biology subject.It will helps to get more idea about question pattern in every book back questions with solution.
latest Book back 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.
Plants having similar genotypes produced by plant breeding are called _____.
clone
haploid
autopolyploid
genome
2.
Desired improved variety of economically useful crops are raised by _______.
Natural Selection
hybridization
mutation
biofertilisers
3.
The quickest method of plant breeding is _______.
Introduction
Selection
Hybridization
Mutation breeding
4.
Match Column I with Column II
| Column I | Column II |
| i) William S. Gaud | I) Heterosis |
| ii) Shull | II) Mutation breeding |
| iii) Cotton Mather | III) Green revolution |
| iv) Muller and Stadler | IV) Natural hybridization |
| i | ii | iii | iv |
| I | II | III | IV |
| i | ii | iii | iv |
| III | I | IV | II |
| i | ii | iii | iv |
| IV | II | I | IV |
| i | ii | iii | iv |
| II | IV | III | I |
5.
While studying the history of domestication of various cultivated plants _______ were recognized earlier
Centres of origin
Centres of domestication
Centres of hybrid
Centres of variation
1.
(a)
clone
2.
(b)
hybridization
3.
(d)
Mutation breeding
4.
(b)
| i | ii | iii | iv |
| III | I | IV | II |
5.
(a)
Centres of origin
12th Standard Syllabus & Materials
12th Standard
TN 12th English Supplementary - 3 - The Hour of Truth (Play) Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th English Poem - 3 - All the World’s a Stage Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th English Prose - 3 - In Celebration of Being Alive Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th English Supplementary - 2 - Life of Pi Sample Question Papers Study Material - QB365 Set A
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
