12th Standard Syllabus & Materials
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TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
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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.
Dimethyl sulphoxide is a _________.
Solidifying agent
Cryoprotectant
Fusogenic agent
Stimulant
2.
The optimal pH of culture medium is generally ___________.
Acidic
Basic
Neutral
Slightly basic
3.
A widely used fusogen in protoplast culture is ________
Polymethyl glycol
Polyethylene glycol
Polyethylene chloride
Polyvinyl chloride
4.
Which of the following condition favours callus induction?
Temperature of 25°C ± 5°C with 12 hours of photoperiod
Temperature of 25°C ± 2°C with 18 hours of photoperiod
Temperature of 25°C ± 5°C with 14 hours of photoperiod
Temperature of 25°C ± 2°C with 16 hours of photoperiod
5.
Identify the group of scientists who developed the intergenic hybrid - the pomato.
Yamada et al.
Horsh et al.
Takebe et al.
Melchers et al.
1.
(b)
Cryoprotectant
2.
(a)
Acidic
3.
(b)
Polyethylene glycol
4.
(d)
Temperature of 25°C ± 2°C with 16 hours of photoperiod
5.
(d)
Melchers et al.
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
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