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Q. No.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%
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NEET - 2019
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Which of the following is true for Golden rice?
| 1. | It has yellow grains, because of gene introduced from a primitive variety of rice |
| 2. | It is Vitamin A enriched, with a gene from daffodil |
| 3. | It is pest resistant, with a gene from Bacillus thuringiensis |
| 4. | It is drought tolerant, developed using Agrobacterium vector |
Subtopic: Other GM Crops |
87%
From NCERT
NEET - 2019
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The exploitation of bioresources of a nation by multinational companies without authorization from the concerned country is referred to as:
| 1. | Bioweapon | 2. | Biopiracy |
| 3. | Bioethics | 4. | Biowar |
Subtopic: Ethical Issues |
96%
From NCERT
NEET - 2019
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Subtopic: Interference RNA Tech |
81%
From NCERT
NEET - 2019
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Which of the following statements is not correct?
| 1. | The proinsulin has an extra peptide called C-peptide |
| 2. | Functional insulin has A and B chains linked together by hydrogen bonds. |
| 3. | Genetically engineered insulin is produced in E. Coli. |
| 4. | In man, insulin is synthesized as proinsulin. |
Subtopic: Med Applications & Humulin |
83%
From NCERT
NEET - 2020
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Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (BT) is resistant to:
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%
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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%
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RNA interference is used for which of the following purposes in the field of biotechnology?
| 1. | to develop a plant tolerant to abiotic stresses |
| 2. | to develop a pest-resistant plant against infestation by nematode |
| 3. | to enhance the mineral usage by the plant |
| 4. | to reduce post-harvest losses |
Subtopic: Interference RNA Tech |
91%
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NEET - 2020
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The laws and rules to prevent unauthorized exploitation of bio-resources are termed as:
1. Biopatenting
2. Bioethics
3. Bioengineering
4. Biopiracy
Subtopic: Ethical Issues |
From NCERT
NEET - 2020
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