NCERT Solutions for Class 12 Biology Chapter 12 - Biotechnology and its Applications

 

NCERT Solutions for Class 12 Biology Chapter 12 - Biotechnology and its Applications: Biotechnology has given to humans several useful products by using microbes, plant, animals and their metabolic machinery. Recombinant DNA technology has made it possible to engineer microbes, plants, and animals such that they have novel capabilities. Genetically Modified Organisms have been created by using methods other than natural methods to transfer one or more genes from one organism to another, generally using techniques such as recombinant DNA technology.

In Chapter 12 - Biotechnology and its Applications of NCERT you will study about the applications of biotechnology which include therapeutics, diagnostics, genetically modified crops for agriculture, processed food, bioremediation, waste treatment, and energy production.

Three critical research areas of biotechnology are:

  • (i) Providing the best catalyst in the form of the improved organism usually a microbe or pure enzyme
  • (ii) Creating optimal conditions through engineering for a catalyst to act, and
  • (iii) Downstream processing technologies to purify the protein/organic compound.

Here the important topics of NCERT Class 12 Biology Chapter 12 - Biotechnology and its Applications are given below:

12.1 Biotechnological Applications in Agriculture

12.2 Biotechnological Applications in Medicine

    12.2.1 Genetically Engineered Insulin

    12.2.2 Gene Therapy

    12.2.3 Molecular Diagnosis

12.3 Transgenic Animals

12.4 Ethical Issues 

In chapter 12 - Biotechnology and its Applications, you will also study an interesting topic that is Gene therapy. Gene therapy is the insertion of genes into an individual’s cells and tissues to treat diseases, especially hereditary diseases. It does so by replacing a defective mutant allele with a functional one or gene targeting which involves gene amplification. Viruses that attack their hosts and introduce their genetic material into the host cell as part of their replication cycle are used as vectors to transfer healthy genes or more recently portions of genes.

After going through the NCERT Class 12 Biology Chapter 12 - Biotechnology and its Applications line by line, you will be able to answer the questions given below:

  • Q1.What is gene therapy? Illustrate using the example of adenosine deaminase (ADA) deficiency.
  • Q2. Diagrammatically represent the experimental steps in cloning and expressing a human gene (say the gene for growth hormone) into a bacterium like E. coli?
  • Q3. Can you suggest a method to remove oil (hydrocarbon) from seeds based on your understanding of rDNA technology and chemistry of oil?

If you find any problem in answering these questions or unable to answer by yourself, then NCERT Solutions for Class 12 Biology Chapter 12 - Biotechnology and its Applications will help you to answer them.

Try to attempt all the questions mentioned in the NCERT Class 12 Biology Chapter 12 - Biotechnology and its Applications, because NCERT is the base of your board exam. If you have any doubt then Solutions for NCERT Class 12 Biology Chapter 12 - Biotechnology and its Applications will help you out. This will also help you in the preparation of other competitive exams like NEET and AIIMs.

NCERT Solutions Class 12 Biology Chapter 12 - Biotechnology and its Applications: Solved Exercise Questions

NCERT Solutions class 12 – Biology

Chapter 1

Reproduction in organisms

Chapter 2

Sexual Reproduction in Flowering Plants

Chapter 3

Human Reproduction

Chapter 4

Reproductive Health

Chapter 5

Principles of Inheritance and Variation

Chapter 6

Molecular basis of inheritance

Chapter 7

Evolution

Chapter 8

Human health and disease

Chapter 9

Strategies for enhancement in food production

Chapter 10

Microbes in Human Welfare

Chapter 11

Biotechnology: Principles and Processes

Chapter 13

Organisms and Populations

Chapter 14

Ecosystem

Chapter 15

Biodiversity and Conservation

Chapter 16

Environmental Issues

NCERT Solutions for Class 12- Subject wise

NCERT solutions for Class 12 Maths

NCERT solutions for Class 12 Chemistry

NCERT solutions for  Class 12 Biology

NCERT solutions for Class 12 Physics

 

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