Comprehension
The basic scheme of the essential steps involved in the process of recombinant DNA technology is summarised below in the form of a flow diagram. Study the given flow diagram and answer the questions that follow.
Top Questions on Microbes in human welfare
- Student to attempt either option (A) or (B): (A) Ravi lives in a village where he suggested to the local farmers to introduce a fungus as biofertilizer into their crop fields. State the benefits provided by the fungus to the crop.
OR
(B)- [(i)] How do secondary lymphoid organs provide immunity?
- [(ii)] Highlight the role of spleen as an organ that provides immunity.
- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
- Assertion (A): Swiss cheese is characterized by large holes due to CO2 production.
Reason (R): It is ripened by growing a specific fungi.- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
- Assertion (A): Swiss cheese is characterized by large holes due to CO2 production.
Reason (R): It is ripened by growing a specific fungi.- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
- Large scale industrial production of streptokinase for human welfare is done using the microbe:
- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
- Bottled fruit juices are clearer as compared to those made at home, as they are clarified by the use of:
- CBSE CLASS XII - 2025
- Biology
- Microbes in human welfare
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Questions Asked in CBSE CLASS XII exam
- Radhika, Mehar, and Shubha were partners in a firm sharing profits and losses in the ratio of 9:8:7. If Radhika's share of profit at the end of the year amounted to Rs 5,40,000, Shubha's share of profit will be:
- CBSE CLASS XII - 2025
- Partnership Accounts
- Cite two evidences from the text to show that gender bias is still a hindrance in the progress of women in society.
- CBSE CLASS XII - 2025
- Reading Comprehension
- What is so ironical about Sam reaching the third level?
- CBSE CLASS XII - 2025
- Literature
- Which of the following is not a greenhouse gas?
- CBSE CLASS XII - 2025
- Environment Awareness
- Name the various advanced technologies adopted in emission control.
- CBSE CLASS XII - 2025
- Automotive Systems and Maintenance
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