Match List I with List II:
Choose the correct answer from the options given below:
1. A-II, B-I, C-IV, D-III
2. A-II, B-III, C-I, D-IV
3. A-I, B-IV, C-III, D-II
4. A-I, B-II, C-IV, D-III
| List I | List II | ||
| A. | Genetically modified organism | I. | Agrobacterium tumefaciens |
| B. | Thermostable DNA polymerase | II. | Bt cotton |
| C. | Ti plasmid | III. | Thermus aquaticus |
| D. | pBR322 | IV. | Escherichia coli |
1. A-II, B-I, C-IV, D-III
2. A-II, B-III, C-I, D-IV
3. A-I, B-IV, C-III, D-II
4. A-I, B-II, C-IV, D-III
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Exploring molecular, genetic and species-level diversity for products of economic importance is called:
1. Bioprospecting
2. Biofortification
3. Biomagnification
4. Bioremediation
1. Bioprospecting
2. Biofortification
3. Biomagnification
4. Bioremediation
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Which of the following statements are true with reference to the sex-determination in honeybees?
| A. | An offspring formed from the union of a sperm and an egg, develops as a female (queen or worker). |
| B. | An unfertilized egg develops as a male by parthenogenesis. |
| C. | A male has half the number of chromosomes than that of a female. |
| D. | Males produce sperm by meiosis. |
| E. | Honeybees have a haplodiploid sex-determination system. |
Choose the correct answer from the options given below:
| 1. | A, B, C and E only | 2. | A, B, C and D only |
| 3. | B, C, D and E only | 4. | A, B, D and E only |
Level 4: Below 35%
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| List I (Growth Regulator) |
List II (Function/Effect) |
||
| A. | 2,4-D | I. | Brewing industry |
| B. | GA3 | II. | Stimulation of stomatal closure |
| C. | Kinetin | III. | Herbicide |
| D. | ABA | IV. | Nutrient mobilisation |
1. A-I, B-II, C-IV, D-III
2. A-I, B-IV, C-III, D-II
3. A-IV, B-III, C-II, D-I
4. A-III, B-I, C-IV, D-II
Level 4: Below 35%
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In racemose inflorescence,_____________
1. the growth is limited
2. flowers are solitary
3. flowers are borne in an acrepetal succession
4. the main axis terminates in a flower
1. the growth is limited
2. flowers are solitary
3. flowers are borne in an acrepetal succession
4. the main axis terminates in a flower
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Since the origin and diversification of life on Earth, there have been five episodes of mass extinction of species. How is the sixth extinction, which is in progress, different from the previous episodes?
| 1. | The current species extinction rates are far lower than those in previous episodes. |
| 2. | The present species extinction rates are 100 to 1000 times faster than in the pre-human times. |
| 3. | The present net species extinction rate is zero. |
| 4. | The current species extinction rate is nearly 10 times faster than that in previous episodes. |
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Alpha-helix is found in which level of protein structure?
1. Secondary structure
2. Primary structure
3. Tertiary structure
4. Quaternary structure
1. Secondary structure
2. Primary structure
3. Tertiary structure
4. Quaternary structure
Level 4: Below 35%
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The enzyme required for carboxylation in Calvin cycle is:
1. PEP carboxylase
2. RuBP carboxylase - oxygenase
3. Carboxypeptidase
4. Hexokinase
1. PEP carboxylase
2. RuBP carboxylase - oxygenase
3. Carboxypeptidase
4. Hexokinase
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Arrange the following in the correct developmental sequence related to microsporogenesis:
Choose the correct answer from the options given below:
| A. | Microspore tetrads |
| B. | Sporogenous tissue |
| C. | Pollen grains |
| D. | Pollen mother cells |
| 1. | A, D, C, B | 2. | D, A, C, B |
| 3. | B, D, C, A | 4. | B, D, A, C |
Level 4: Below 35%
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Which of the following statements are not true regarding restriction endonucleases?
Choose the answer from the options given below:
| A. | They are called molecular scissors. |
| B. | These are the enzymes responsible for restricting the growth of bacteriophages in E. coli. |
| C. | They cut the DNA only at the centre of the palindromic sites. |
| D. | They remove nucleotides only from the ends of DNA fragments. |
| E. | They recognise specific palindromic base-pair sequences. |
Choose the answer from the options given below:
| 1. | C and D only | 2. | A and E only |
| 3. | D and E only | 4. | A and B only |
Level 4: Below 35%
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