Given below are two statements:
| Statement I: | Pyramid of energy is always upright and is the most efficient |
| Statement II: | Pyramid of biomass in sea is generally inverted |
In the light of the above statements, choose the most appropriate answer from the options given below:
| 1. | Statement I is correct but Statement II is incorrect |
| 2. | Statement I is incorrect but Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Identify the properties of a good vector used in rDNA technology
| (a) | It should have origin of replication supporting a high copy number |
| (b) | It should have preferably more than '2' recognition sites |
| (c) | The restriction sites in vector should be in the antibiotic- resistant genes |
| (d) | It should have suitable marker genes |
| (e) | It should be easy to isolate and purify |
Choose the most appropriate answer from the options given below:
1. (a), (c) and (e) only
2. (c), (d) and (e) only
3. (a), (b) and (c) only
4. (a), (c) , (d) and (e) only
Match List - I with List - II
| List - I | List - II |
| (a) Chromoplasts | (i) Proteins |
| (b) Amyloplasts | (ii) Oil and fats |
| (c) Elaioplasts | (iii) Starch |
| (d) Aleuroplasts | (iv) Carotene |
Choose the correct answer from the option given below
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (i) | (iii) | (ii) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (iv) | (ii) | (iii) | (i) |
| 4. | (iv) | (iii) | (i) | (ii) |
Match List-I with List-II regarding sensory organs in human.
| List I | List II |
| (a) Organ of corti | (i) Photo receptors |
| (b) Nasal mucosa | (ii) Gustatory receptors |
| (c) Taste buds | (iii) Auditory receptors |
| (d) Retina | (iv) Olfactory receptors |
Choose the correct answer from the option given below
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iv) | (iii) | (i) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iv) | (iii) | (i) | (ii) |
| 4. | (iii) | (i) | (ii) | (iv) |
Which one of the following features are not true for chordates?
| (a) | Heart is dorsal. |
| (b) | Pharynx is perforated by gill slits. |
| (c) | Central nervous system is ventral, solid and single. |
| (d) | Post-anal tail is present. |
| (e) | Notochord is present. |
Choose the most appropriate answer from the option give below :
| 1. | (e) only | 2. | (a), (d) and (c) only |
| 3. | (b) and (c) only | 4. | (a) and (c) only |
| 1. | 1 | 2. | 3 |
| 3. | 2.5 | 4. | 2 |
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | In human beings, insulin is synthesized as a pro-hormone which needs to be processed before it becomes fully mature and functional. |
| Reason (R): | The extra stretch of C-peptide is to be removed from A-peptide and B-peptide chain of insulin. |
In the light of the above statements, Choose the most appropriate answer from the option given below :
| 1. | (A) is True but (R) is False. |
| 2. | (A) is False but (R) is True. |
| 3. | Both (A) and (R) are True and (R) is the correct explanation for (A). |
| 4. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
Match List-I with List-II
| List-I | List-II |
| (a) Puccinia | (i) Parasitic fungus on mustard |
| (b) Neurospora | (ii) Dead substrates |
| (c) Saprophytes | (iii) Wheat rust |
| (d) Albugo | (iv) Biochemical and Genetic Work |
Choose the correct answer from the option given below :
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (ii) | (iv) | (i) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (i) | (ii) | (iii) | (iv) |
| 4. | (iv) | (ii) | (i) | (iii) |
What would be the proportions of light and hybrid density DNA molecule, respectively if Meselson and Stahl's experiment was continued for 60 minutes ?
| 1. | 50%, 50% | 2. | 25%, 75% |
| 3. | 75%, 25% | 4. | 100%, 0% |
Match List-I with List-II
| List-I | List-II | ||
| (a) | Adhering junctions | (i) | Establish a barrier that prevents leakage of extracellular third across a layer of cells |
| (b) | Tight junctions | (ii) | Functions like rivets and fasten cells together into strong sheets |
| (c) | Gap junctions | (iii) | Pass information through neurotransmitters from one cell to another |
| (d) | Synaptic junctions | (iv) | Provide cytoplasmic channels from one cell to an adjacent cell for communication |
Choose the correct answer from the options given below
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (iii) | (ii) | (i) |
| 2. | (i) | (iii) | (ii) | (iv) |
| 3. | (ii) | (i) | (iv) | (iii) |
| 4. | (i) | (ii) | (iii) | (iv) |
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