#biotechnology and its applications ppt

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Biotechnology and Its Applications Detailed Explanation Suitable for Class 12 Students

Biotechnology and Its Applications:

Introduction to Biotechnology:

Biotechnology involves using living organisms, cells, and biological systems to develop products and technologies for various applications. It merges biology with technology, providing innovative solutions in multiple fields such as agriculture, medicine, and environmental management.

1. Biotechnological Applications in Agriculture:

Biotechnology in agriculture aims to enhance food production and crop quality through several advanced techniques:

Agro-Chemical Based Agriculture: This method uses chemical fertilizers and pesticides to increase crop yields. However, it can have negative environmental impacts.

Organic Agriculture: Involves using natural methods and products for farming, promoting sustainability and reducing chemical residues in food.

Genetically Engineered Crops (GMOs): Crops are modified using genetic engineering to exhibit desirable traits such as pest resistance, drought tolerance, and improved nutritional content. Examples include Bt cotton, which produces Bt toxin to protect against specific pests, reducing the need for chemical insecticides.

Read Also: Biodiversity and Conservation - Class 12 Detailed Notes

Tissue Culture: This technique allows the growth of entire plants from small tissue samples (explants). It helps in producing a large number of genetically identical plants, known as some clones, which are beneficial for maintaining uniform crop quality.

Micro-Propagation: A form of tissue culture used to produce a large number of plants quickly. It is useful for propagating plants that do not produce viable seeds.

Somatic Hybridization: Combines different plant species at the cellular level to create new hybrid plants with desirable traits from both parent species.

2. Biotechnological Applications in Medicine:

Biotechnology has revolutionized medicine, providing advanced methods for diagnosing, treating, and preventing diseases:

Recombinant DNA Technology: Allows the production of therapeutic proteins and drugs in large quantities. For example, insulin used to treat diabetes is now produced using genetically engineered bacteria, making it safer and more effective than animal-derived insulin.

Gene Therapy: Involves inserting healthy genes into a patient's cells to treat genetic disorders. It offers potential cures for diseases like cystic fibrosis and certain types of cancer.

Vaccines: Biotechnology has enabled the development of new vaccines, such as the recombinant hepatitis B vaccine, which is produced using yeast cells.

3. Transgenic Animals:

Transgenic animals are genetically modified to carry genes from other species. They serve various purposes, including:

Research: Studying gene functions and disease mechanisms in transgenic animals helps scientists understand human diseases better.

Pharming: Producing valuable proteins and drugs in the milk, eggs, or blood of transgenic animals, which can then be harvested and purified for medical use.

Improving Livestock: Enhancing traits like growth rate, disease resistance, and milk production in farm animals.

4. Ethical Issues:

Biotechnology raises several ethical and moral concerns:

Safety of GMOs: There is ongoing debate about the potential health risks and environmental impacts of genetically modified crops and animals.

Genetic Discrimination: The use of genetic information by employers or insurance companies could lead to discrimination against individuals based on their genetic predisposition to certain diseases.

Moral Implications: Genetic modifications in humans, such as designer babies, spark ethical questions about the extent to which humans should interfere with natural processes.

Conclusion:

Biotechnology offers immense potential to solve some of the world's pressing challenges in food production, healthcare, and environmental conservation. However, it is crucial to address the ethical and safety issues associated with its applications to ensure responsible and sustainable use of this powerful technology.

This more detailed overview should help Class 12 students understand the scope and implications of biotechnology and its applications in a comprehensive yet accessible manner.

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Biotechnology and its applications PPT- Revision

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Summary- Biotechnology and its applications ppt

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…