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Q. No.Regarding artificial system of classification of living organisms:
1. I is correct and II is incorrect
2. Both I and II are correct and II explains I
3. I is incorrect and II is correct
4. Both I and II are correct but II does not explain I
| I: | It is the most acceptable system for classification of living organisms. |
| II: | The vegetative characters are more easily affected by environment. |
1. I is correct and II is incorrect
2. Both I and II are correct and II explains I
3. I is incorrect and II is correct
4. Both I and II are correct but II does not explain I
Subtopic: Classification System: II |
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The system of classification of plants given by Carolus Linnaeus was:
| 1. | an artificial system based mainly on the androecium structure. |
| 2. | a natural system based on large number of natural affinities between flowering plants. |
| 3. | was a phylogenetic system based on evolutionary relationships. |
| 4. | was a chemotaxonomic system based on structure of homologous proteins. |
Subtopic: Classification System: II |
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In numerical taxonomy:
| I: | computers are used and all the observable characters are taken into consideration. |
| II: | hundreds of characters can be considered together and each character is given equal importance. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. both I and II are incorrect
Subtopic: Classification System: I |
83%
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Identify the incorrect statement regarding classification of plants given by George Bentham and Joseph Dalton Hooker:
| 1. | It is a natural system of classification. |
| 2. | It totally disregarded the external characters and did not include them to classify plants. |
| 3. | It used internal features like structure, anatomy, embryology and phytochemistry. |
| 4. | It was based on natural affinities among the organisms. |
Subtopic: Classification System: II |
80%
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Match each item in Column I with one in Column II and select the correct match as your answer from the coders given:
Codes
| Column I [Classification method] |
Column II [Feature used] |
||
| A. | Artificial | P. | Evolutionary relationships |
| B. | Phylogenetic | Q. | Gross morphological characters |
| C. | Chemotaxonomy | R. | Chemical constituents of plants |
| D. | Cytotaxonomy | S. | Chromosome number, structure and behaviour |
Codes
| A | B | C | D | |
| 1. | P | Q | S | R |
| 2. | Q | P | R | S |
| 3. | R | S | P | Q |
| 4. | S | R | Q | P |
Subtopic: Classification System: II |
93%
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Fusion of two gametes which are dissimilar in size is termed as
| 1. | Oogamy | 2. | Isogamy |
| 3. | Anisogamy | 4. | Zoogamy |
Subtopic: Algae |
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Consider the following statements regarding green algae:
| I: | Pigments are located in definite plastids |
| II: | Most have pyrenoids in chloroplasts |
| III: | Cell wall has an inner layer of pectose and outer layer of cellulose |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Chlorophyceae: Green Algae |
69%
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Subtopic: Algae | Pteridophytes |
92%
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Charophytes are the only living algae that share distinctive derived traits with land plants that other algae don’t. All the following will be examples of such derived traits except:
1. Rings of cellulose-synthesizing proteins
2. Structure of flagellated sperms
3. Formation of a phragmoplast
4. Presence of chlorophyll a and b
Subtopic: Chlorophyceae: Green Algae: I |
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The form and size of algae is highly variable. Which of the following will not be true?
| I: | Volvox is a colonial alga. |
| II: | Ulothrix and Spirogyra do not form filaments. |
| III: | Kelps form massive plants bodies. |
| 1. Only II | 2. Only III |
| 3. Both I and II | 4. Both II and III |
Subtopic: Algae |
83%
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