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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.
2.
How many amino acids are arranged in the two chains of Insulin
Chain A has 12 and Chain B has 13
Chain A has 21 and Chain B has 30 amino acids
Chain A has 20 and Chain B has 30 amino acids
Chain A has 12 and chain B has 20 amino acids.
3.
The genetic defect adenosine deaminase deficiency may be cured permanently by
Enzyme replacement therapy
periodic infusion of genetically engineered lymphocytes having ADA cDNA
administering adenosine deaminase activators
introducing bone marrow cells producing ADA into embryo at an early stage of development.
4.
Dolly, the sheep was obtained by a technique known as
Cloning by gene transfer
Cloning without the help of gametes
Cloning by tissue culture of somatic cells
Cloning by nuclear transfer
5.
The first clinical gene therapy was done for the treatment of
AIDS
Cancer
Cystic fibrosis
SCID
1.
(a)
2.
(b)
Chain A has 21 and Chain B has 30 amino acids
3.
(a)
Enzyme replacement therapy
4.
(d)
Cloning by nuclear transfer
5.
(c)
Cystic fibrosis
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Biology

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Computer Applications

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Commerce

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Chemistry

Physics

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