Give an example of a natural form of genetic engineering in which the bacterium inserts gene into plants to cause gall or tumour formation.

3

(a)

Do you see the prospects of viroids being used as plant vectors in near future?

3

(a)

Give an example where a disease causing pathogen of animals has been transformed into useful vector for delevering genes to humans.

3

(a)

Write the name of genus, species, strain of source bacteria from which the following endonucleases are obtained. Also write the order of their identification in the bacteria.
(i) Eco R I
(ii) Hind II

3

(a)

Youn have been given a task to break the cells of following organisms and release DNA along with other macromolecules from them. Name the specific enzymes you will select for the task:
(i) Bacterial cell
(ii) Plant cell
(iii) Fungal cell

3

(a)