Biology : Biotechnology and Its Applications

What are transgenic animals? Given an example

Explain 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.

What is a GMO? List any five possible advantages of a GMO is a farmer. 

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.

State the use of Biodiversity in modern agriculture. 

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?