Q. No.The given picture shows the ear of wheat containing a mass of olive-brown SMUT spores. The disease is caused by a fungal pathogen belonging to:
1.
Ascomycetes
2.
Phycomycetes
3.
Basidiomycetes
4.
Deuteromycetes
The ‘photobiont’ [photosynthetic component] in a Lichen can be:
| I. A green alga | II. A cyanobacterium |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
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Archaebacteria differ from other bacteria in having a different cell wall structure. Which of the following is/are true?
I. No archaebacteria have peptidoglycan in their cell wall but some can have pseudopeptidoglycan.
II. No bacteria have S-layer in their cell envelopes but some may have slimy glycocalyx.
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
What is common to Anabaena, Nostoc, Nitrosomonas and Nitrobacter?
I. All are photosynthetic autotrophs.
II. All can directly fix atmospheric nitrogen.
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Regarding viroids:
| I: | They are small single-stranded, circular RNAs that are infectious pathogens. |
| II: | The first recognized viroid was the Potato spindle tuber viroid, abbreviated PSTVd. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
The diagram shows the presence of a pathogen amongst RBCs in the peripheral blood smear of a patient. Even though the shape is very easy to identify, the structure highlighted in the circle should enable you to identify the pathogen easily. It is:
| 1. | Trypanosoma | 2. | Plasmodium |
| 3. | Schistosoma | 4. | Clonorchis |
The structure shown in the given figure represents:
1. the newest version of a Bluetooth speaker by Amazon
2. the soap case like cell wall of a diatom
3. cellulosic plates in the walls of dinoflagellates
4. pellicle in the wall of euglenoids
Find the correct match [with respect to Whittaker’s Five Kingdom classification]:
| 1. | Monera | All members have a cell wall |
| 2. | Protista | All members are photosynthetic |
| 3. | Fungi | All members are multi-cellular |
| 4. | Animalia | All members are heterotrophs |
| COLUMN I | COLUMN II | ||
| A | Brown rust of wheat | P | Colletotrichum falcatum |
| B | Black rot of crucifers | Q | Xanthomonas campestris |
| C | Red rot of sugarcane | R | Phytophthora infestans |
| D | Late blight of potato | S | Puccinia graminis |
Codes:
| A | B | C | D | |
| 1. | S | Q | P | R |
| 2. | S | Q | R | P |
| 3. | S | R | P | Q |
| 4. | R | Q | R | S |
| COLUMN I [Kingdom] |
COLUMN II [Cell wall] |
||
| A | Monera | P | Absent |
| B | Fungi | Q | Chitinous |
| C | Plantae | R | Polysaccharide + amino acid |
| D | Animalia | S | Cellulosic |
| A | B | C | D | |
| 1. | R | S | Q | P |
| 2. | R | Q | S | P |
| 3. | Q | S | R | P |
| 4. | P | Q | R | S |
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