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.
Totipotency refers to _____.
capacity to generate genetically identical plants.
capacity to generate a whole plant from any plant cell / explant.
capacity to generate hybrid protoplasts.
recovery of healthy plants from diseased plants.
2.
Micro propagation involves _____.
vegetative multiplication of plants by using micro-organisms.
vegetative multiplication of plants by using small explants.
vegetative multiplication of plants by using microspores.
Non-vegetative multiplication of plants by using microspores and megaspores.
3.
4.
The time duration for sterilization process by using autoclave is ______ minutes and the temperature is ______.
10 to 30 minutes and 125° C
15 to 30 minutes and 121° C
15 to 20 minutes and 125° C
10 to 20 minutes and 121° C
5.
Which of the following statement is correct
Agar is not extracted from marine algae such as seaweeds
Callus undergoes differentiation and produces somatic embryoids.
Surface sterilization of explants is done by using mercuric bromide
PH of the culture medium is 5.0 to 6.0
1 Marks
1.
(c)
capacity to generate hybrid protoplasts.
2.
(b)
vegetative multiplication of plants by using small explants.
3.
(a)
4.
(b)
15 to 30 minutes and 121° C
5.
(b)
Callus undergoes differentiation and produces somatic embryoids.
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
