Q. No.The given below figure shows a generalised life cycle of a fungus. Identify A, B and C from the given option.
| A | B | C |
(1) | Meiosis | Fertilisation | Meiosis |
(2) | Meiosis | Mitosis | Fertilisation |
(3) | Mitosis | Meiosis | Fertilisation |
(4) | Mitosis | Fertilisation | Meiosis |
Difficulty Level:
Read the following statements regarding archaebacteria.
I. Their cell wall lacks peptidoglycan.
II. They contain membrane bound organelles.
III. These have distinct ribosomal RNA sequence.
IV. Lipid in cell membrane of archaebacteria have different structure than those in all other organisms.
Choose the incorrecct option.
(1) I and II
(2) Only II
(3) Only IV
(4) III and IV
Difficulty Level:
A bacterium divides every 35 minutes. If a culture containing 105 cells/mL is grown for 175 minutes, what will be the cell concentration/mL after 175 minutes?
(1) 5 × 105 cells
(2) 35 × 105 cells
(3) 32 × 105 cells
(4) 4.175 × 105 cells
Difficulty Level:
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
Difficulty Level:
'Red tide' is caused by
(1) Gonyaulax
(2) Ceratium
(3) Triceratium
(4) All of these
Difficulty Level:
Which one of the following shows heterothallism?
(1) Rhizopus
(2) Bacterium
(3) Cycas
(4) Ricinus
Difficulty Level:
Difficulty Level:
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
Difficulty Level:
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
Difficulty Level:
Spirochaetes is/are
(1) a class of viruses
(2) myxobacteria
(3) spiral-shaped bacteria
(4) richittsias
Difficulty Level:
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