Dikaryotisation (n + n) in Agaricus is brought about by

(1) clamp connections

(2) somatogamay between two hyphae of different strains

(3) Both (1) and (2) are correct

(4) basidiospores

Subtopic:  Kingdom Fungi: Basidomycetes |
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'Red tide' is caused by

(1) Gonyaulax

(2) Ceratium

(3) Triceratium

(4) All of these

Subtopic:  Kingdom protista: Dinoflagellates |
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Which one of the following shows heterothallism?

(1) Rhizopus

(2) Bacterium

(3) Cycas

(4) Ricinus

Subtopic:  Kingdom Fungi: Zygomycetes |
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Which of the following is a 'cyanophage'?

(1) S-13

(2) ϕ×174

(3) SV-40

(4) LPP-1

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The common characteristic showning by mushroom, smut and rust

(1) is characterised by presence of basidiocarps

(2) is characterised by presence of ascocarps

(3) all are pathogen

(4) all are saprophytic in nature

Subtopic:  Kingdom Fungi: Basidomycetes |
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Which one exhibits the character of a protozoan during one phase of its life cycle and character of fungi in another phase of its life cycle?

(1) Water moulds

(2) Psilophytes

(3) Slime moulds

(4) Diatoms

Subtopic:  Kingdom protista: Slime Moulds |
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Spirochaetes is/are

(1) a class of viruses

(2) myxobacteria

(3) spiral-shaped bacteria

(4) richittsias

Subtopic:  Kingdom Monera: Introduction |
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Which of the following organisms completely lack cell wall, they are the smallest living cells known and can survive without oxygen?

(1) Mycoplasma

(2) Euglenoids

(3) Slime moulds

(4) All of these

Subtopic:  Kingdom Monera:Actinomycetes, Mycoplasma |
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Spirochaetes is are

(1) a class of insects

(2) a class of viruses

(3) bacteria

(4) fungi

Subtopic:  Kingdom Monera: Introduction |
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The metachromatic granules are

(1) present in plants cell at metaphase stage

(2) inclusion bodies in bacteria

(3) produced in insects during metamorphosis

(4) chromatophores in animals skin

Subtopic:  Kingdom Monera: Surface Appendages |
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Difficulty Level: