Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (BT) is resistant to:

1. Fungal diseases
2. Plant nematodes
3. Insect predators
4. Insect pests
Subtopic:  Bt Crops |
 71%
From NCERT
NEET - 2020
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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)

Subtopic:  Bt Crops | Interference RNA Tech |
 88%
From NCERT
NEET - 2020
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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)

Subtopic:  Bt Crops | Interference RNA Tech | Gene Therapy | Molecular Diagnosis |
 93%
From NCERT
NEET - 2020
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NEET 2023 - Target Batch - Aryan Raj Singh
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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

Subtopic:  Bt Crops |
 91%
From NCERT
NEET - 2019
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh