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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.
Consider the following statements:
I. Recombinant DNA technology is popularly known as genetic engineering is a stream of biotechnology which deals with the manipulation of genetic materials by man invitro
II. pBR322 is the first artificial cloning vector developed in 1977 by Boliver and Rodriguez from E.coli plasmid
III. Restriction enzymes belongs to a class of enzymes called nucleases.
Choose the correct option regarding above statements
I & II
I & III
II & III
I,II & III
2.
Genetic engineering is _____.
making artificial genes.
hybridization of DNA of one organism to that of the others.
production of alcohol by using micro organisms.
making artificial limbs, diagnostic instruments such as ECG, EEG etc.,
3.
EcoRI cleaves DNA at ____.
AGGGTT
GTATATC
GAATTC
TATAGC
4.
Plasmids are ______.
circular protein molecules
required by bacteria
tiny bacteria
confer resistance to antibiotics
5.
1.
(d)
I,II & III
2.
(b)
hybridization of DNA of one organism to that of the others.
3.
(c)
GAATTC
4.
(d)
confer resistance to antibiotics
5.
(d)
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Tamilnadu Stateboard 12th Standard Subjects

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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

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