Short Answer TypeExplain enzyme-replacement therapy to treat adenosine deaminase deficiency. Mention two disadvantages of this procedure.
(a) Why must a cell be made 'competent' in biotechnology experiments ? How does
calcium ion help in doing so ?
(b) State the role of 'biolistic gun' in biotechnology experiments.
How has RNAi technique helped to prevent the infestation of roots in tobacco plants by a nematode Meloidegyne incognita?
Biotechnologists refer to Agrobacterium tumifaciens as a natural genetic engineer of plants. Give reasons to support the statement.
How is “Rosie‟ considered different from a normal cow ? Explain.
Rosie was a transgenic cow. It was considered different from a normal cow as it produced human protein enriched milk. The milk contained 'human alpha-lactalbumin' and was nutritionally a more balanced product for human babies than the normal cow milk.
Scientists have succeeded in recovering healthy sugarcane plants from a diseased one.
1. Name the part of the plant used as explant by the scientists.
2. Describe the procedure the scientists followed to recover the healthy plants.
3. Name this technology used for crop improvement.
How does the application of the fungal genus, Glomus, to the agricultural farm increase the farm output?
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