Q. No.Which of the following is correct about class Deuteromycetes?
1. Some members are saprophytes or parasites.
2. A large number of members are decomposers of litter and help in mineral cycling.
3. Alternaria, Colletotrichum and Trichoderma are deuteromycetes.
4. All
1. Some members are saprophytes or parasites.
2. A large number of members are decomposers of litter and help in mineral cycling.
3. Alternaria, Colletotrichum and Trichoderma are deuteromycetes.
4. All
Identify the blanks in the following figures –
| 1. | A – Cell wall, B – Cell membrane, C – Heterocyst, D – DNA, E – mucilaginous sheath. |
| 2. | A – Cell wall, B – Cell membrane, C – DNA, D – Heterocyst, E – Mucilaginous sheath. |
| 3. | A – Mucilaginous sheath, B – Cell membrane, C – DNA, D – Heterocyst, E – Cell wall. |
| 4. | A – Cell membrane, D – Cell wall, C – DNA, D – Heterocyst, E – Mucilaginous sheath. |
Which of the following is not true for three domain
system?
1. Divides kingdom monera into two domains.
2. Third domain includes all eukaryotic organisms.
3. It resulted in six kingdom classifications.
4. It is not phylogenetic.
Archaebacteria differ from other bacteria on the
basis of
1. Cell membrane structure.
2. Cell wall structure.
3. Presence of vacuole.
4. flagella structure.
In case of protists sexual reproduction can be by
1. Cell fusion
2. Zygote formation
3. Triple fusion
4. Both 1 and 2
Which of the following have pigment similar to higher
plants?
1. Group which causes red tide.
2. Group which is chief producer of ocean.
3. Group when deprived of light behaves as heterotroph.
4. Group where spore have cellulosic cell wall
Which of the following fungus lacks dikaryophase?
1. Claviceps
2. Puccinia
3. Aspergillus
4. Trichoderma
Which of the following is not correctly matched?
| 1. | Inert Crystals - Virus | 2. | Free RNA - Viroids |
| 3. | Normal protein - Prions | 4. | Symbionts - Lichen |
Mad cow disease in cattle is caused by an organism which has:
1. Inert crystalline
2. Abnormally folded protein
3. Free RNA without protein coat
4. Free DNA without protein coat
Match the organisms in Column-I with habitats in Column-II.
| Column-I | Column-II | ||
| (a) | Halophiles | (i) | Hot springs |
| (b) | Thermoacidophiles | (ii) | Aquatic environment |
| (c) | Methanogens | (iii) | Guts of ruminants |
| (d) | Cyanobacteria | (iv) | Salty areas |
Select the correct answer from the options given below:
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iv) | (i) | (iii) | (ii) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (iii) | (iv) | (i) | (i) |
| 4. | (ii) | (iv) | (iii) | (i) |
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