| Assertion (A): | To diagnose presence of a specific DNA segment in a mixture, complementary pairing between nucleotides is exploited. |
| Reason (R): | DNA probes having radioactive isotopes help to detect DNA by autoradiography. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True and (R) is not the correct explanation of (A) |
| 3. | (A) is True but (R) is False |
| 4. | Both (A) and (R) are False |
| Assertion (A): | RNAi is an RNA-dependent gene silencing process. |
| Reason (R): | The RNAi pathway is a naturally occurring process found in many eukaryote cells. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True and (R) does not correctly explain (A) |
| 3. | (A) is True; (R) is False |
| 4. | (A) is False; (R) is True |
| I: | Gene therapy involves the introduction of a functional gene into the cells of an individual to treat genetic disorders. |
| II: | RNA interference (RNAi) is a technique used to silence specific genes by degrading their structural genes located on template DNA. |
| III: | Transgenic organisms are those that have been genetically modified to express desirable traits. |
| (A) | It is a method of cellular defense in all prokaryotic organisms. |
| (B) | This method has been used to make nematode resistant tobacco plants. |
| (C) | It is a post translational method of silencing of genes. |
| 1. | Norman Borlaug is considered as father of green revolution |
| 2. | Green revolution leads to enhanced production of wheat and rice |
| 3. | Techniques used during green revolution led to tripling of the yield |
| 4. | Use of biofertilizers, biopesticides was promoted heavily during green revolution |
| 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 |
| I: | RNAi takes place in all eukaryotic organisms as a method of cellular defense. |
| II: | RNAi involves silencing of a specific mRNA due to a complementary dsDNA molecule. |
| 1. | GM crops that produce biofuels and starches for industrial applications. |
| 2. | GM crops that are resistant to all types of bacterial and viral infections. |
| 3. | GM crops that naturally produce higher amounts of nitrogen for fertilization. |
| 4. | GM crops that produce a sweetener used in soft drinks. |