IBPS AFO FREE QUIZ

1. The microbes play an important role in the catalytic complicated chemical reactions of
   1. Wine productions
   2. Fermentation
   3. All of the above
   4. Dairy product
   
   
2. Which among the following contain only one type of nucleic acid?
   1. Virus
   2. All
   3. Dead virus
   4. Bacteria
   
   
3. The plant virus was first isolated in crystalline form
   1. HIV
   2. Cyanophages
   3. Bacteriophages
   4. TMV
   
   
4. The molecular scissors use3d to cut DNA into specific genes of interest are called
   1. Restriction endonucleases
   2. Polymerases
   3. Ligases
   4. Exonucleases
   
   
5. The quickest way to produce homozygous breeding lines from heterozygous parents is through
   1. Half-seed technique
   2. doubled haploids
   3. Introgression
   4. Aneuploidy
   
   
6. Bird flu is caused by
   1. Avian adenovirus
   2. Avian poxvirus
   3. Avian leucosis virus
   4. Avian influenza virus
   
   
7. Stomata are regulated by
   1. N
   2. P
   3. K
   4. Ca
   
   
8. Guttation is not favoured under
   1. Low humidity
   2. Low root pressure
   3. High humidity
   4. High humidity and low root pressure
   
   
9. The xylem and phloem elements in the plant are surrounded by a layer of living cells called
   1. Casparian strips
   2. Pericycle
   3. Stele
   4. Endodermis
   
   
10. A plant hormone, which is primary regulator of abscission process is
    1. Ethylene
    2. Auxin
    3. Gibberellins
    4. ABA
    
    
11. In citrus plant, die back diseases is the result of deficiency of
    1. N
    2. Copper
    3. Boron
    4. P
    
    
12. Natural inhibitor of IAA oxidases is
    1. Coumaric acid
    2. Caffeic Acid
    3. ABA
    4. Lactic Acid
    
    
13. Gypsum is used for the reclamation of
    1. Saline soil
    2. Heavy soil
    3. Sodic soil
    4. Acidic soil
    
    
14. silver fish belonging to the order
    1. Protura
    2. Hymenoptera
    3. Thysanura
    4. Pronura
    
    
15. Transpiration is measured by
    1. Lysimeter
    2. Tensionmeter
    3. Auxanometer
    4. Potometer
    
    
16. Yellow revolution is associated with;-
    1. Pulse production
    2. Milk production
    3. Fruit production
    4. Oilseeds production
    
    
17. Conservation tillage tends to encourage
    1. Lower number of earthworms
    2. Reduced soil fauna
    3. Higher microbial population
    4. None of these
    
    
18. Biogeochemical nutrient cycles have led to recognize that
    1. Balanced fertilization
    2. Over fertilization
    3. Under fertilization
    4. None of these
    
    
19. Pyranometer is used to measure;-
    1. Light duration
    2. Evaporation rate
    3. Wind speed
    4. Solar radiation
    
    
20. Ammonia present in the soil can be lost in significant quantities from
    1. Acid soils
    2. Alkaline soils
    3. Both of these
    4. None of these
    
    
21. Groundnut is a
    1. Storage root
    2. Modified storage leaf
    3. Fruit
    4. Modified stem
    
    
22. The ICAR was established in
    1. 1930
    2. 1936
    3. 1935
    4. 1929
    
    
23. The adsali sugarcane is planted in
    1. Feb –March
    2. October
    3. July
    4. None
    
    
24. Soybean is plant
    1. Short day
    2. Long day
    3. Intermediate day length
    4. Day neutral
    
    
25. Chlorophyll contains
    1. Magnesium
    2. Manganese
    3. Iron
    4. Cobalt
    
    

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