Q. No.Which of the following statements is incorrect?
1.
Yeasts have filamentous bodies with long thread-like hyphae.
2.
Morels and truffles are edible delicacies.
3.
Claviceps is a source of many alkaloids and LSD.
4.
Conidia are produced exogenously and ascospores endogenously.
Match the Column-I with Column-II
|
Column-I |
Column-II |
||
|
(a) |
Saprophyte |
(i) |
Symbiotic association of fungi with plant roots |
|
(b) |
Parasite |
(ii) |
Decomposition of dead organic materials |
|
(c) |
Lichens |
(iii) |
Living on living plants or animals |
|
(d) |
Mycorrhiza |
(iv) |
Symbiotic association of algae and fungi |
Choose the correct answer from the options given below:
| Options: | (a) | (b) | (c) | (d) |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (ii) | (i) | (iii) | (iv) |
Which of the following statements is incorrect?
| 1. | Prions consist of abnormally folded proteins |
| 2. | Viroids lack a protein coat |
| 3. | Viruses are obligate parasites |
| 4. | Infective constituent in viruses is the protein coat |
Assertion(A): |
Diatomaceous earth is used in polishing, filtration of oil and syrups. |
| Reason(R): | Diatomaceous earth is gritty due to presence of silica. |
| 1. | Both (A) and (R) are True, and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True, but (R) does not correctly explain (A) |
| 3. | (A) is True, but (R) is False |
| 4. | Both (A) and (R) are False |
Evolutionary history of an organism is known as:
1. Phylogeny
2. Ancestry
3. Palaeontology
4. Ontogeny
Which of the following environmental conditions are essential for the optimum growth of Mucor on a piece of bread?
| (A) | The temperature of about 25 °C |
| (B) | The temperature of about 5 °C |
| (C) | Relative humidity of about 5% |
| (D) | Relative humidity of about 95% |
| (E) | A shady place |
| (F) | A brightly illuminated place |
Choose the answer from the following options:
1. A, C, and E only
2. A, D, and E only
3. B, D, and E only
4. B, C, and F only
What is common about Trypanosoma, Noctiluca, Monocystis, and Giardia?
1. These are all unicellular protists
2. They have flagella
3. They produce spores
4. These are all parasites
The bacterium (Clostridium botulinum) that causes botulism is:
1. a facultative anaerobe
2. an obligate anaerobe
3. a facultative aerobic
4. an obligate aerobic
The thalloid body of a slime mould (Myxomycetes) is known as:
1. protonema
2. Plasmodium
3. fruiting body
4. mycelium
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