Class 12th Biology 2015 Set1 Delhi Board Paper Solution
Question 19
Recombination DNA technology is of great importance in the field of medicine. With the help of a flow chart, show how this technology has been used in preparing genetically engineered human insulins.
Answer
Preparation of Human Insulin Using Recombinant DNA Technology
Popular Questions of Class 12th biology
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- Q:- Why is reproduction essential for organisms? Answer
- Q:- Write a short note on
(a) Adaptations of desert plants and animals
(b) Adaptations of plants to water scarcity
(c) Behavioural adaptations in animals
(d) Importance of light to plants
(e) Effect of temperature or water scarcity and the adaptations of animals. - Q:- With a neat diagram explain the 7-celled, 8-nucleate nature of the female gametophyte.
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- Q:- What is oogenesis? Give a brief account of oogenesis.
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- Q:- What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusion.
- Q:- With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.
- Q:- Explain the Law of Dominance using a monohybrid cross.
Recently Viewed Questions of Class 12th biology
- Q:- Which one of the following has the largest population in a food chain?
(a) Producers
(b) Primary consumers
(c) Secondary consumers
(d) Decomposers - Q:- Why is reproduction essential for organisms? Answer
- Q:- What are sacred groves? What is their role in conservation?
- Q:- If a population growing exponentially double in size in 3 years, what is the intrinsic rate of increase (r) of the population?
- Q:- Find out from newspapers and popular science articles any new fossil discoveries or controversies about evolution.
- Q:- With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.
- Q:- What is meant by emasculation? When and why does a plant breeder employ this technique?
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- Q:- What are the various public health measures, which you would suggest as safeguard against infectious diseases?
- Q:- What are chasmogamous flowers? Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.