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Biology Notes for Class 12 Chapter 13. Organism and Populations Chapter Summary           As a branch of biology, Ecology is the study of the relationships of living organisms with the abiotic (physico-chemical factors) and biotic components (other species) of their environment. It is concerned with four levels of biological organisation-organisms, populations, […]

Biology Notes for Class 12 Chapter 12. Biotechnology and Its Applications Chapter Summary           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

Biology Notes for Class 12 Chapter 11. Biotechnology: Principles and Processes Chapter Summary Biotechnology deals with large scale production and marketing of products and processes using live organisms, cells or enzymes. Modern biotechnology using genetically modified organisms was made possible only when man learnt to alter the chemistry of DNA and construct recombinant DNA. This

Biology Notes for Class 12 Chapter 10. Microbes in Human Welfare Chapter Summary Microbes are a very important component of life on earth. Not all microbes are pathogenic. Many microbes are very useful to human beings. We use microbes and microbially derived products almost every day. Bacteria called lactic acid bacteria (LAB) grow in milk

Biology Notes for Class 12 Chapter 8. Human Life and Disease Chapter Summary Health is not just the absence of disease. It is a state of complete physical, mental, social and psychological well-being. Diseases like typhoid, cholera, pneumonia, fungal infections of skin, malaria and many others are a major cause of distress to human beings.

Biology Question Bank for Class 12 Chapter 1: Reproduction in Organism Chapter Summary           Reproduction enables a species to live generation after generation. Reproduction in organisms can be broadly classified into asexual and sexual reproduction. Asexual reproduction does not involve the fusion of gametes. It is common in organisms that have

Biology Notes for Class 12 Chapter 1. Reproduction in Organism Chapter 2. Sexual Reproduction in Flowering Plants Chapter 3. Human Reproduction in Organi Click Here Master Mind CBSE Question Bank –Economics Class 12 |Term 2 | For CBSE Board (Includes MCQs) Master Mind CBSE Question Bank –Accountancy Class 12 |Term 2 | For CBSE Board

Hindi Core Notes for Class 12 7. फीचर लेखन 18.  Read the Case Study given below and answer the questions that follow: Winters in the town of Trondheim mean fierce winds and heavy snow. The skies are dark for months. Kari drives to work in the dark at 8 am. She has special tyres for

Hindi Core Notes for Class 12 लेखन विधा 1. रचनात्मक लेखन Click Here 2. औपचारिक पत्र Click Here 3. कहानी की रचना प्रक्रिया Click Here 4. नाटक की रचना प्रक्रिया Click Here 5. कैसे बनता है रेडिओ नाटक Click Here 6. समाचार लेखन Click Here 7. फीचर लेखन Click Here 8. आलेख Click Here आरोह

Hindi Core Question Bank for Class 12 लेखन विधा 1. रचनात्मक लेखन Click Here 2. औपचारिक पत्र Click Here 3. कहानी की रचना प्रक्रिया Click Here 4. नाटक की रचना प्रक्रिया Click Here 5. कैसे बनता है रेडिओ नाटक Click Here 6. समाचार लेखन Click Here 7. फीचर लेखन Click Here 8. आलेख Click Here