Q. No.Consider the two statements:
Statement I:
Bt toxin is more environmentally friendly than synthetic pesticides.
Statement II:
Expression of Bt toxin gene in plants provide resistance of certain insects.
1.
Statement I is correct and Statement II is incorrect
2.
Both Statement I and Statement II are correct and Statement II explains Statement I
3.
Both Statement I and Statement II are correct but Statement II does not explain Statement I
4.
Statement I is incorrect and Statement II is correct
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| I: | Any Bt toxin gene isolated from Bacillus thuringiensis can be used to create GM crops resistant to all insects. |
| II: | Bt toxins do not have specificity for any insect groups. |
| 1. | Statement I is correct and Statement II is incorrect. |
| 2. | Both Statement I and Statement II are correct and Statement II explains Statement I. |
| 3. | Both Statement I and Statement II are correct but Statement II does not explain Statement I. |
| 4. | Both Statement I and Statement II are incorrect. |
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| 1. | a nematode, Meloidogyne incognita. |
| 2. | a nematode, Caenorhabditis elegans. |
| 3. | a trematode, Clonorchis sinensis. |
| 4. | a cestode, Taenia sloium. |
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| I: | An infection by viruses having RNA genomes |
| II: | Mobile genetic elements that replicate via an RNA intermediate |
| III: | Integration of phage DNA into the main chromosomal DNA of a eukaryotic cell |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
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| Assertion (A): | In most cases, recombinant therapeutics are safer than similar products isolated from non-human sources. |
| Reason (R): | Recombinant therapeutics do not induce unwanted immunological responses. |
| 1. | Both (A) and (R) are true and (R) correctly explains (A). |
| 2. | (A) is true but (R) is false. |
| 3. | Both (A) and (R) are true but (R) does not explain (A). |
| 4. | Both (A) and (R) are false. |
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| I: | All diabetics require insulin from the very beginning. |
| II: | Insulin can be given orally to diabetics. |
| III. | Insulin extracted from pancreas of slaughtered cattle and pigs caused some patients to develop allergy. |
| IV. | Recombinant insulin was first prepared by Indian pharmaceutical giant Ranbaxy. |
| V. | The two polypeptide chains in the final structure of Insulin are joined by disulfide bonds. |
| VI. | DNA sequences corresponding to A and B chains of human insulin were introduced in plasmids of E.coli to produce insulin chains for preparing recombinant insulin. |
| 1. | 2 | 2. | 3 |
| 3. | 4 | 4. | 5 |
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| Assertion (A): | Correction of a gene defect by gene therapy involves delivery of a normal copy of gene into the individual or embryo. |
| Reason (R): | The normal copy of gene delivered takes over the function of and compensates for the non-functional gene. |
| 1. | Both (A) and (R) are false. |
| 2. | (A) is true but (R) is false. |
| 3. | Both (A) and (R) are true but (R) does not explain (A). |
| 4. | Both (A) and (R) are true and (R) explains (A). |
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| Assertion (A): | Deficiency of the enzyme adenosine deaminase causes severe combined immunodeficiency. |
| Reason (R): | This disorder is caused due to the deletion of the gene for adenosine deaminase. |
| 1. | Both (A) and (R) are true but (R) does not explain (A). |
| 2. | (A) is true but (R) is false. |
| 3. | Both (A) and (R) are false. |
| 4. | Both (A) and (R) are true and (R) explains (A). |
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| I: | ADA deficiency is caused due to the deletion of the gene for adenosine deaminase. |
| II: | Bone marrow transplant and enzyme replacement therapy are completely curative. |
| III. | Lymphocytes transformed with cADA gene are permanent cure for the condition. |
| 1. | Only I and II | 2. | Only I |
| 3. | Only II and III | 4. | I, II and III |
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| I: | PCR is now used routinely to detect HIV in suspected AIDS patients. |
| II: | PCR is being used to detect mutations in genes in suspected cancer patients. |
| III. | PCR can detect infections only when symptoms are present. |
| 1. | Statement I is correct, Statement II is incorrect, Statement III is correct. |
| 2. | Statement I is incorrect, Statement II is correct, Statement III is correct. |
| 3. | Statement I is correct, Statement II is correct, Statement III is incorrect. |
| 4. | Statement I is incorrect, Statement II is incorrect, Statement III is correct. |
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