The stages shown in the diagram given below can be seen during sexual reproduction in:
1. Rhizopus
2. Alternaria
3. Neurospora
4. Agaricus
2. Alternaria
3. Neurospora
4. Agaricus
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Identify the incorrect statement regarding Euglena:
1. Euglena's chloroplasts are surrounded by three membranes and contain pyrenoids
2. Euglena has two flagella rooted in basal bodies, one flagellum is very short, and does not protrude from the cell, while the other is relatively long
3. A photosensitive red spot is present towards the anterior end
4. When feeding as a heterotroph, Euglena takes in nutrients by osmotrophy
The structure shown in the given diagram is related to:
1. Slime moulds
2. Sporozoans
3. Cyanobacteria
4. Mycoplasma
The given diagram shows the life cycle of:
1. Puccinia graminis tritici with A part representing the stages in wheat plant and B part representing the stages in Barberry plant
2. Puccinia graminis tritici with A part representing the stages in Barberry plant and B part representing the stages in wheat plant
3. Ustilago tritici with A part representing the stages in wheat plant and B part representing the stages in Barberry plant
4. Ustilago tritici with A part representing the stages in Barberry plant and B part representing the stages in wheat plant
Identify the pair where the fungal pathogen is not correctly matched with the disease it causes in the concerned plant:
|
1. |
Cystopus candidus |
White rust of crucifers |
|
2. |
Uncinula necator |
Powdery mildew of grape-vine |
|
3. |
Erysiphe graminis |
Powdery mildew of cereals |
|
4. |
Phytophthora infestans |
Early blight of potato |
All the following are bacterial diseases of plants except:
1. Citrus canker
2. Black rot of cabbage
3. Red rot of sugarcane
4. Wildfire of tobacco
Most lichen fungi belong to:
1. Phycomycetes
2. Ascomycetes
3. Basidiomycetes
4. Deuteromycetes
Soredia, Isidia and Cephalodia are peculiar features of:
1. Asexual reproduction in lichens
2. Sexual reproduction in lichens
3. Vegetative reproduction in lichens
4. Asexual reproduction in dinoflagellates
Causing the Great Oxygenation Event and the "rusting of the Earth", which of the dramatically changed the composition of the Earth's life forms and led to the near-extinction of anaerobic organisms?
1. Cynobacteria
2. Diatoms
3. Dinoflagellates
4. Green algae
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