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Q. No.Genetically engineered pest resistance has advantages over other forms of pest control. Identify the one which is not:
1. pesticides are expensive and time-consuming to apply
2. pesticides are rarely selective
3. pesticides accumulate in the environment
4. pesticides are ineffective now
Subtopic: Intro to Agri Applications |
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
Consider the given two statements:
| Assertion (A): | Toxic insecticidal proteins present in protein crystals formed by B. thuringiensis do not kill the Bacillus. |
| Reason (R): | The Bt toxin protein exists as inactive protoxin in the Bacillus. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | (A) is True; (R) is False |
| 3. | (A) is False; (R) is False |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A). |
Subtopic: Bt Crops |
92%
From NCERT
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Genetic modification has:
1. Only I, II and III are correct
2. Only I, II and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
| I: | made crops more tolerant to abiotic stresses (cold, drought, salt, heat). |
| II: | reduced reliance on chemical pesticides (pest-resistant crops). |
| III: | enhanced nutritional value of food, e.g., golden rice, i.e., Vitamin ‘A’ enriched rice. |
| IV: | enabled plants to fix atmospheric nitrogen on their own. |
2. Only I, II and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
Subtopic: Bt Crops |
71%
From NCERT
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Consider the given two statements:
| Assertion(A): | Bt toxin proteins do not harm the bacillus. |
| Reason (R): | The bacillus protects its gut by methylation |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True; (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Bt Crops |
66%
From NCERT
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Consider the given two statements:
| Assertion(A): | Agrobacterium vector was used to introduce nematode-specific genes into tobacco plants to create transgenic plants resistant to Meloidogyne incognita. |
| Reason (R): | Tobacco plant is a monocot. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True; (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Interference RNA Tech |
72%
From NCERT
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Consider the given two statements:
| Assertion(A): | The Green Revolution succeeded in tripling the food supply. |
| Reason (R): | Use of genetically modified crops was primarily responsible for the success of green revolution. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True; (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Intro to Agri Applications |
53%
From NCERT
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What role do Agrobacterium vectors play in creating transgenic tobacco plants resistant to Meloidogyne infestation?
| 1. | Direct attack and killing of nematodes in the soil. |
| 2. | Making the roots tougher so that the nematode cannot enter the plant. |
| 3. | Introduce nematode-specific genes into the host plant, leading to the production of complementary dsRNA. |
| 4. | Increasing oxygen availability in the rhizosphere, killing the nematode. |
Subtopic: Interference RNA Tech |
96%
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How does RNA interference (RNAi) enable tobacco plants to develop resistance against nematode infection?
| 1. | By enhancing the expression of nematode-attracting genes that trap and kill the nematode. |
| 2. | By silencing specific genes of the nematode through double stranded RNA. |
| 3. | By increasing the production of proteins that are toxic to the nematodes. |
| 4. | By promoting faster growth of the plant, outpacing nematode damage. |
Subtopic: Interference RNA Tech |
90%
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A post-transcriptional genetic mechanism of eukaryotes that suppresses gene expression and in which double-stranded RNA cleaved into small fragments initiates the degradation of a complementary messenger RNA sequence is called:
| 1. | CRISPR | 2. | Genetic Engineering |
| 3. | Gene Splicing | 4. | RNA Interference |
Subtopic: Interference RNA Tech |
75%
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How were nematode specific genes introduced in tobacco plants to make it resistant to infection by Meloidogyne incognitia?
1. Using Agrobacterium vectors
2. Using gene gun
3. Through retroviruses
4. Using liposomes
1. Using Agrobacterium vectors
2. Using gene gun
3. Through retroviruses
4. Using liposomes
Subtopic: Interference RNA Tech |
92%
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