Match the bacteria in Column I with its shape in Column II and select the correct option from the codes given below:
COLUMN I |
|
COLUMN II |
|
A |
Bacillus |
a |
Rod |
B |
Coccus |
b |
Spherical |
C |
Spirilla |
c |
Spiral |
D |
Vibrio |
d |
Comma |
Codes
A | B | C | D | |
1. | a | b | c | d |
2. | b | a | c | d |
3. | a | d | c | b |
4. | b | a | d | c |
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In the symbiotic relation lichen, the mycobiont does not:
1. prepare food for the other partner
2. provide shelter to the other partner
3. absorb mineral nutrients for the other partner
4. absorb water for the other partner
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Potato Spindle Tuber Disease is caused by a pathogen that is:
1. | A nucleocapsid |
2. | A low molecular weight free RNA |
3. | An abnormally folded protein |
4. | A protozoan |
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Prion is:
1. A nucleocapsid
2. A low molecular weight free RNA
3. An abnormally folded protein
4. A protozoan
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Which of the following is not a characteristic of dinoflagellates?
1. Mostly fresh water and photosynthetic
2. Cell wall with stiff cellulosic plates
3. Two flagella
4. Various colored pigments in the cell
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The chief producers in the oceans are:
1. | Floating hydrophytes | 2. | Blue green algae |
3. | Desmids | 4. | Diatoms |
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Deuteromycetes are also called as Fungi imperfecti because:
1. They do not have a thalloid body
2. They can contain chlorophyll
3. There are no parasitic members
4. Sexual phases are not known
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A ‘dikaryon’ stage is seen in the members of:
1. Ascomycetes and Phycomycetes
2. Ascomycetes and Basidiomycetes
3. Basidiomycetes and Phycomycetes
4. Basidiomycetes and Deuteromycetes
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Alternaria, Colletotrichum and Trichoderma belong to the class:
1. Phycomycetes | 2. Ascomycetes |
3. Basidiomycetes | 4. Deuteromycetes |
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In general, the viruses that infect plants have:
1. | Single stranded RNA | 2. | Single stranded DNA |
3. | Double stranded RNA | 4. | Double stranded DNA |
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