Class 12 Biology Important Questions
Sexual Reproduction in Flowering Plants Important Questions
Sexual Reproduction in Flowering Plants — Important Questions 1. Describe the structure of a typical embryo sac. 2. What is double fertilisation? Explain syngamy and triple fusion…
Human Reproduction Important Questions
Human Reproduction — Important Questions 1. Describe the process of spermatogenesis in brief. 2. Where does fertilisation occur in humans? 3. Name the hormones that regulate the m…
Principles of Inheritance and Variation Important Questions
Principles of Inheritance and Variation — Important Questions 1. State Mendel's three laws of inheritance. 2. What is a test cross and why is it used? 3. Differentiate between inc…
Molecular Basis of Inheritance Important Questions
Molecular Basis of Inheritance — Important Questions 1. Describe the Watson Crick model of DNA. 2. Why is DNA replication called semiconservative? 3. Differentiate between transcr…
Microbes in Human Welfare Important Questions
Microbes in Human Welfare — Important Questions 1. How do microbes help in making curd and bread? 2. What are biofertilisers? Give two examples. 3. Name two biocontrol agents and…
Biotechnology – Principles and Processes Important Questions
Biotechnology – Principles and Processes — Important Questions 1. What is recombinant DNA technology? 2. State the role of restriction enzymes and DNA ligase. 3. What is a cloning…
Organisms and Populations Important Questions
Organisms and Populations — Important Questions 1. Differentiate between regulators and conformers. 2. Differentiate between exponential and logistic growth. 3. What is carrying c…
Ecosystem Important Questions
Ecosystem — Important Questions 1. Differentiate between primary and secondary productivity. 2. Explain the steps of decomposition. 3. State the 10 per cent law of energy flow. 4.…
Biodiversity and Conservation Important Questions
Biodiversity and Conservation — Important Questions 1. Name the three levels of biodiversity. 2. Explain the latitudinal gradient in biodiversity. 3. List the causes of biodiversi…