Q. No.In the Two Kingdom classification, the Kingdom Plantae was erroneous with some major issues that include:
I. Placing bacteria and blue green algae with eukaryotic groups
II. Grouping together the unicellular organisms with multicellular ones
III. Placing heterotrophic fungi with autotrophic plants
1.
I and II only
2.
I and III only
3.
II and III only
4.
I, II and III
II. Grouping together the unicellular organisms with multicellular ones
III. Placing heterotrophic fungi with autotrophic plants
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What is not true regarding sexual reproduction in basidiomycetes?
| 1. | Sex organs are well developed |
| 2. | Plasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes |
| 3. | Karyogamy and meiosis take place in basidium, producing four basidiospores |
| 4. | Basidiospores are produced exogenously on the basidium |
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Viruses are:
1. Obligate intracellular parasites
2. Obligate extracellular parasites
3. Facultative parasites
4. Free living, outside a living cell
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The cell walls of diatoms are ‘indestructible’ as they are embedded with:
| 1. | Silica | 2. | Chitin |
| 3. | Calcium | 4. | Raphides |
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Bacteriophages are:
1. Bacteria infecting ss RNA viruses
2. Bacteria infecting ds RNA viruses
3. Viruses that infect bacteria and generally have ds DNA
4. Viruses that infect bacteria and generally have ds RNA
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Yeast is unique amongst the members of Kingdom Fungi because it:
1. reproduces by ascospores
2. is unicellular
3. does not have a chitinous cell wall
4. does not have a sexual mode of reproduction
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The phenomenon of red tides is associated with blooms of:
| 1. Zooxanthelle | 2. Gonyaulax |
| 3. Blue green algae | 4. Ctenoplana and Beroe |
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Identify the incorrect statement regarding Euglenoids:
1. Majority are found in fresh stagnant water
2. Presence of two flagella
3. Behave as heterotrophs when deprived of sunlight
4. Pigments entirely different from those found in higher plants
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Which of the following is not true for fungi belonging to the class Phycomycetes?
1. Aspetate and coenocytic mycelium
2. Spores endogenously produced in sporangium
3. Asexual reproduction by nonmotile zoospores or motile aplanospores
4. Found in aquatic habitats, decaying wood or as obligate parasites on plants
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Which of the following is not a character of Ascomycetes?
| 1. | Mycelium is unbranched and septate |
| 2. | Asexual spores conidia are produced exogenously |
| 3. | Sexual spores called ascospores are produced endogenously |
| 4. | Conidia on germination produce mycelium |
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