
Which process is represented in following diagram?


Important Questions on Biotechnology - Principles and Processes






To conduct detailed study into disease causing organism in livestock, Biosafety laboratory has been setup in India in:
1. Ludhiana
2. Bengaluru
3. Anand
4. Allahabad




Assertion (A) : Transgenic Golden Rice is rich in Vitamin A and prevents blindness.
Reason (R) : It is obtained from "Taiwan"


Assertion Bt toxin exists as inactive prototoxin but once an insect ingests the inactive toxin, it is converted into an active form of toxin.
Reason Protoxin gets activated in insect gut due to the acidic in the gut, which solubilises the protein crystals.
The correct answer is:


Reason (R): and controls the cotton boll worms

Assertion A: In Bt cotton B. thuringiensis produces a toxic insecticidal crystalline protein which destroys bollworms.
Reason R: B. thuringiensis produces this toxic protein in an inactive form, but when an insect ingests this inactive protein, it is converted into active form of toxin due to the alkaline pH of gut which solubilises the crystals, which is responsible for the death of bollworm.



Change the phenotype of host-organism by genetic engineering
Chemical engineering process of vaccine production by tissue culture
Manufacture of specific products from eukaryotic cells in bioreactors
Altering the chemistry of genetic material by tissue culture

Match the organism with its use in biotechnology.
(a) | Bacillus thuringiensis | (i) | Cloning vector |
(b) | Thermus aquaticus | (ii) | Construction of first rDNA molecule |
(c) | Agrobacterium tumefaciens | (iii) | DNA polymerase |
(d) | Salmonella typhimurium | (iv) | Cry proteins |

