Among rust, smut and mushroom, two of them
(1) are pathogens
(2) are saprobes
(3) bear ascocarps
(4) bear basidiocarps
Difficulty Level:
Which of the following is correct match?
|
|
Disease |
Pathogen |
|
(1) |
Wilt disease |
Synchytrium |
|
(2) |
Citrus canker |
Xanthomonas |
|
(3) |
Red rot of sugarcane |
Ustilago |
|
(4) |
Powdery mildew |
Fusarium |
Difficulty Level:
Which one of the following pairs is not correctly matched?
|
(1) |
Streptomyces |
- Antibiotic |
|
(2) |
Serratia |
- Drug addiction |
|
(3) |
Spirulina |
- Single cell protein |
|
(4) |
Rhizobium |
- Biofertilizer |
Difficulty Level:
The growth curve of bacterial population in lab is plotted against time. What will be the shape of graph?
(1) Sigmoid
(2) Hyperbolic
(3) Ascending straight line
(4) Descending straight line
Difficulty Level:
The outermost limiting layer of mycoplasma is made up of
(1) cell wall
(2) cell membrane
(3) mucilaginous sheath
(4) slime layer
Difficulty Level:
By all of the following ways bacteria become resistant to antibiotic except
(1) making enzymes that inactivate the drug
(2) becoming impermeable to the drug
(3) modifying the target of the drug
(4) moving away from the drug.
Difficulty Level:
Protista differs from monera in having
(1) cell wall
(2) autotrophic nutrition
(3) flagella
(4) nuclear membrane
Difficulty Level:
Which of the following is correct?
(1) All fungi are filamentous.
(2) Transfer of DNA from one bacteria to another bacteria cannot take place.
(3) Virus cannot have both DNA and RNA.
(4) Protists reproduce asexually only.
Difficulty Level:
Deuteromycetes are known as fungi imperfecti because
(1) their zygote undergoes meroblastic and holoblastic cleavage
(2) only asexual stages are known
(3) they have aseptate mycelium
(4) they are autotrophic
Difficulty Level:
Difficulty Level:
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