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Q. No.which of the following structures helps in the respiration of lichens?
(1) Soredia
(2) Isidia
(3) Cyphella
(4) Cephalodia
Difficulty Level:
Viroids have
(1) single stranded RNA not enclosed by protein coat
(2) single stranded DNA not enclosed by protein coat
(3) double straded DNA enclosed by protein coat
(4) double stranded RNA enclosed by protein coat
Difficulty Level:
Which one of the following pairs is correctly matched?
|
(1) |
Rhizobium |
- Parasite in the roots of leguminous plants |
|
(2) |
Mycorrhizae |
- Mineral uptake from soil |
|
(3) |
Yeast |
- Production of biogas |
|
(4) |
Myxomycetes |
- The disease ring worm |
Difficulty Level:
Which one of the following is correctly matched regarding an Institute and its location?
(1) National Institute of Virology - Pune
(2) National Institute of Communicable Diseases-Lucknow
(3) Central Drug Research Institute-Kasauli
(4) National Institute of Nutrition-Mumbai
Difficulty Level:
Myxomycetes are
(1) saprobes or parasites, having mycelia, asexual reproduction by fragmentation, sexual reproduction by fusion of gametes
(2) slimy mass of multinucleate protoplasm, having pseudopodia-like structures for engulfing food, reproduction through fragmentation or zoospores
(3) prokaryotic organisms, cellular or acellular, saprobes or autotrophic, reproduce by binary fission
(4) eukaryotic, single-celled or filamentous, saprobes or autotrophic, asexual reproduction by fusion of two cells or their nuclei
Difficulty Level:
In prokaryotes, chromatophores are
(1) specialized granules responsible for colouration of cells
(2) structures responsbile for organizing the shape of the organism
(3) inclusion bodies lying free inside the cells for carrying out various metabolic activities
(4) internal membrane systems that may become extensive and complex in photosynthetic bacteria
Difficulty Level:
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 outermost limiting layer of mycoplasma is made up of
(1) cell wall
(2) cell membrane
(3) mucilaginous sheath
(4) slime layer
Difficulty Level:
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