Which one of the following areas in India is a hot spot of biodiversity?
1. Eastern Ghats
2. Gangetic plain
3. Sunder bans
4. Western Ghats
Which one of the following is the correct statement?
| 1. | Pteridophyte gametophyte has a protonemal and leafy stage |
| 2. | In gymnosperms, female gametophyte is free-living |
| 3. | Antheridiophores and protonema are present in pteridophytes |
| 4. | Origin of seed habit can be traced in pteridophytes |
Which one of the following does not differ in E.coli and Chlamydomonas?
1. Ribosomes
2. Chromosomal organization
3. Cell wall
4. Cell membrane
The cyanobacteria are also referred to as:
1. Protists
2. golden algae
3. Slime molds
4. Blue-green algae
The test-tube baby programme employs which one of the following techniques?
| 1. | Intra Cytoplasmic Sperm Injection (ICSI) |
| 2. | Intra Uterine Insemination (IUI) |
| 3. | Gamete Intra Fallopian Transfer (GIFT) |
| 4. | Zygote Intra Fallopian Transfer(ZIFT) |
Which one of the following is a case of wrong matching?
| 1. | Somatic hybridization- Fusion of two diverse cells |
| 2. | Vector DNA- Site for tRNA synthesis |
| 3. | Micropropagation- In vitro production of plants in large numbers |
| 4. | Callus - Unorganized mass of cells produced in tissue culture |
The highest number of species in the world is represented by:
| 1. | Fungi | 2. | Mosses |
| 3. | Algae | 4. | Lichens |
In which one of the following options the two examples are correctly matched with their particular type of immunity?
| Examples | Type of immunity |
|
| (a) | Polymorphonuclear leukocytes and monocytes | Cellular barriers |
| (b) | Anti-tetanus and anti-snake bite injection | Active immunity |
| (c) | Saliva in mouth and tears in eyes | Physical barriers |
| (d) | Mucus coating of the epithelium lining the urinogenital tract and HCl in the stomach | Physiological barriers |
2. (b)
3. (c)
4. (d)
Which one of the following is a wrong statement?
| 1. | Anabaena and Nostoc are capable of fixing nitrogen in a free-living state also |
| 2. | Root nodule-forming nitrogen fixers live as aerobes under free-living conditions |
| 3. | Phosphorus is a constituent of cell membranes, certain nucleic acids, and all proteins |
| 4. | Nitrosomonas and Nitrobacter are chemoautotrophs |
Anxiety and eating spicy food together in an otherwise normal human, may lead to:
1. Indigestion
2. Jaundice
3. Diarrhoea
4. vomiting
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