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Q. No.The infectious agent that causes potato spindle tuber disease is:
1.
a free RNA lacking a protein coat
2.
a nucleocapsid
3.
an abnormally folded protein
4.
a ribozyme
Subtopic: Virus, Viroids & Prions |
82%
Level 1: 80%+
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Bacteria are grouped under four categories based on their shape. Identify the incorrect match:
| 1. | Coccus | Spherical |
| 2. | Bacillus | Rod-shaped |
| 3. | Vibrium | Icosahedron |
| 4. | Spirillum | Spiral |
Subtopic: Kingdom Monera: Introduction |
94%
Level 1: 80%+
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Identify the correct statement regarding Euglenoids:
| 1. | Majority of them are marine water organisms found in running water. |
| 2. | The cell wall has stiff cellulose plates on the outer surface. |
| 3. | They have only one flagellum. |
| 4. | Though they are photosynthetic in the presence of sunlight, when deprived of sunlight they behave like heterotrophs. |
Subtopic: Kingdom Protista: Euglenoids |
89%
Level 1: 80%+
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What would be true for Alternaria but not for Puccinia?
| 1. | Heterotrophic mode of nutrition |
| 2. | Sexual stage is unknown |
| 3. | Lack of vegetative reproduction |
| 4. | Called as bracket fungi |
Subtopic: Kingdom Fungi: Deuteromycetes |
82%
Level 1: 80%+
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Match each item in Column-I with one in Column-II and select the correct match from the codes given:
Codes:
| Column-I [Protist] | Column-II [Feature of wall] | ||
| A. | Diatoms | P. | Cell wall has stiff cellulose plates on outer surface |
| B. | Dinoflagellates | Q. | Cell wall embedded with silica |
| C. | Euglenoids | R. | Protein rich layer instead of a cell wall |
| D. | Slime moulds | S. | True walls in spores |
| A | B | C | D | |
| 1. | Q | P | R | S |
| 2. | Q | P | S | R |
| 3. | P | Q | R | S |
| 4. | P | Q | S | R |
Subtopic: Kingdom Protista: Chrysophytes | Kingdom Protista: Dinoflagellates | Kingdom Protista: Euglenoids | Kingdom Protista: Slime Moulds |
88%
Level 1: 80%+
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I [Fungal class] |
Column II [Example] |
||
| A | Phycomycetes | P | Alternaria |
| B | Ascomycetes | Q | Smut fungus |
| C | Basidiomycetes | R | Bread mould |
| D | Deuteromycetes | S | Truffles |
| A | B | C | D | |
| 1. | Q | P | R | S |
| 2. | S | R | P | Q |
| 3. | R | Q | S | P |
| 4. | R | S | Q | P |
Subtopic: Kingdom Fungi: Deuteromycetes | Kingdom Fungi: Zygomycetes | Kingdom Fungi: Ascomycetes | Kingdom Fungi: Basidomycetes | Kingdom Fungi: Phycomycetes |
82%
Level 1: 80%+
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In Whittaker’s five Kingdom classification, organisms with eukaryotic cell type and cellular body organisation are kept under:
| 1. | Kingdom Monera | 2. | Kingdom Protista |
| 3. | Kingdom Fungi | 4. | Kingdom Plantae |
Subtopic: Kingdom Protista: Introduction |
89%
Level 1: 80%+
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Identify the incorrect statement regarding cyanobacteria:
| 1. | They have chlorophyll a (similar to green plants) |
| 2. | They are unicellular and never colonial or filamentous |
| 3. | They often form blooms in polluted water bodies |
| 4. | Some of them can fix atmospheric nitrogen |
Subtopic: Kingdom Monera: Bacterial Classification |
91%
Level 1: 80%+
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The chief ‘producers’ in the oceans are:
1. Cyanobacteria
2. Dinoflagellates
3. Diatoms
4. Lichens
Subtopic: Kingdom Protista: Chrysophytes |
94%
Level 1: 80%+
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Slime molds:
| 1. | form plasmodium that differentiates and forms fruiting bodies bearing spores at their tips during unfavourable conditions. |
| 2. | form plasmodium that differentiates and forms fruiting bodies bearing spores at their tips during favourable conditions. |
| 3. | form plasmodium under favourable conditions and the plasmodium differentiates and forms fruiting bodies bearing spores at their tips during unfavourable conditions. |
| 4. | form plasmodium under unfavourable conditions and the plasmodium differentiates and forms fruiting bodies bearing spores at their tips during favourable conditions. |
Subtopic: Kingdom Protista: Slime Moulds |
61%
Level 2: 60%+
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