Match List-I with List-II:
Choose the correct answer from the options given below:
| List-I (Placentation) |
List-II (Example) |
||
| A. | Marginal | I. | Mustard |
| B. | Axile | II. | Pea |
| C. | Parietal | III. | Marigold |
| D. | Basal | IV. | Lemon |
| 1. | A-I, B-III, C-II, D-IV |
| 2. | A-IV, B-II, C-I, D-III |
| 3. | A-II, B-IV, C-I, D-III |
| 4. | A-III, B-I, C-IV, D-II |
Subtopic: Flower & Parts of Flower |
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Level 1: 80%+
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In angiosperms, root hairs arise from which one of the following regions of the root?
| 1. | The root cap zone |
| 2. | The region of meristematic activity |
| 3. | The region of elongation |
| 4. | The region of maturation |
Subtopic: Morphology of Roots |
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Which one of the following is not a characteristic of plant cells in the phase of elongation?
| 1. | Increased vacuolation |
| 2. | Large conspicuous nuclei |
| 3. | Cell enlargement |
| 4. | New cell wall deposition |
Subtopic: Morphology of Roots |
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Which of the following statements are correct with reference to a transcription unit?
Choose the correct answer from the options given below
| A. | transcription unit in DNA is defined primarily by three regions : promoter, structural gene and terminator. |
| B. | The promoter is said to be located towards the 5'-end of the structural gene. |
| C. | The promoter is a DNA sequence that provides binding site for RNA polymerase. |
| D. | The promoter defines the template and coding strands. |
| E. | The terminator is located towards the 3'-end of the coding strand and it defines the end of the process of transcription. |
| 1. | A, B, C, D and E | 2. | B, C, D and E only |
| 3. | A, C, D and E only | 4. | A, B, C and D only |
Subtopic: Transcription |
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Alpha-helix is found in which level of protein structure ?
| 1. | Quaternary structure | 2. | Tertiary structure |
| 3. | Primary structure | 4. | Secondary structure |
Subtopic: Structural Organisation of Proteins |
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Which of the following statements are correct regarding amino acids?
Choose the correct answer from the options given below:
| A. | They are substituted methanes. |
| B. | Serine is an aromatic amino acid |
| C. | Valine is a neutral amino acid. |
| D. | Lysine is an acidic amino acid. |
| 1. | C and D only | 2. | A and B only |
| 3. | A and C only | 4. | B and C only |
Subtopic: Amino Acids |
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The main function of bulliform cells in grasses is:
| 1. | to make the leaf impermeable to fungal spores. |
| 2. | to perform photosynthesis. |
| 3. | to minimize water loss during water stress. |
| 4. | to transport water. |
Subtopic: Monocot Leaf |
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Find the incorrect statement(s) about photosynthesis from the following:
Choose the answer from the options given below:
| A. | The water splitting complex is associated with PS I. |
| B. | \(C_4\) plants use the \(C_3\) pathway of \(CO_2\) fixation as the main biosynthetic pathway. |
| C. | In \(C_4\) plants, photorespiration does not occur. |
| D. | \(C_3\) plants exhibit ‘Kranz’ anatomy. |
| E. | ATP synthesis in chloroplast occurs through chemiosmosis. |
| 1. | B only | 2. | A and D only |
| 3. | B and C only | 4. | B and E only |
Subtopic: Miscellaneous |
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Match List-I with List-II:
Choose the correct answer from the options given below:
| List-I | List-II | ||
| A. | Conjunctive tissue | I. | Specialised cells in the vicinity of guard cells |
| B. | Casparian strips | II. | Endodermal cells rich in starch |
| C. | Subsidiary cells | III. | Tissue between xylem and phloem |
| D. | Starch sheath | IV. | Endodermal cells with suberin deposition |
| 1. | A-IV, B-III, C-1, D-II | 2. | A-III, B-IV, C-II, D-I |
| 3. | A-III, B-IV C-I, D-II | 4. | A-IV, B-III, C-II, D-I |
Subtopic: Miscellaneous |
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Match List-I with List-II:
Choose the correct answer from the options given below:
| 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-I, B-IV, C-III, D-II |
| 3. | A-II, B-III, C-I, D-IV | 4. | A-I, B-II, C-IV, D-III |
Subtopic: Process of Biotech |
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