Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (BT) is resistant to:
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 |
Select the correct option from the following:
(a) | (b) | (c) | (d) | |
1. | (iv) | (iii) | (i) | (ii) |
2. | (iii) | (ii) | (iv) | (i) |
3. | (iii) | (iv) | (i) | (ii) |
4. | (ii) | (iv) | (iii) | (i) |
Match the following columns and select the correct option.
Column-I | Column-II | ||
a. | Bt cotton | (i) | Gene therapy |
b. | Adenosine deaminase deficiency | (ii) | Cellular defense |
c. | RNAi | (iii) | Detection of HIV infection |
d. | PCR | (iv) | Bacillus thuringiensis |
a | b | c | d | |
1. | (iii) | (ii) | (i) | (iv) |
2. | (ii) | (iii) | (iv) | (i) |
3. | (i) | (ii) | (iii) | (iv) |
4. | (iv) | (i) | (ii) | (iii) |
What triggers the activation of protoxin to active Bt toxin of Bacillus thuringiensis in bollworms?
1. Acidic pH of the stomach
2. Body temperature
3. Moist surface of midgut
4. Alkaline pH of the gut