12th Standard Syllabus & Materials
12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set D
NEW12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set C
NEW12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set B
NEW12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set A
NEW12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set D
NEW12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set C
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 Marks
1.
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
2.
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 |
3.
The quickest method of plant breeding is _______.
Introduction
Selection
Hybridization
Mutation breeding
4.
Desired improved variety of economically useful crops are raised by _______.
Natural Selection
hybridization
mutation
biofertilisers
5.
Plants having similar genotypes produced by plant breeding are called _____.
clone
haploid
autopolyploid
genome
1 Marks
1.
(a)
Centres of origin
2.
(b)
| i | ii | iii | iv |
| III | I | IV | II |
3.
(d)
Mutation breeding
4.
(b)
hybridization
5.
(a)
clone
12th Standard Syllabus & Materials
12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set B
NEW12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set A
NEW12th Standard
TN 12th Standard Physics Wave Optics Creative Questions Study Material - QB365 Set D
NEW12th Standard
TN 12th Standard Physics Wave Optics Creative Questions Study Material - QB365 Set C
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
