Agriculture One Liner
1. The shape of the growth curve is usually
Ans – Sigmoid
2. The forces that can change the frequency of an allele in a population are
Ans – selection, mutagenesis, migration, inbreeding and random genetic drift
3. The anticodon region is present in
Ans – t-RNA
4. In reptiles and birds, nitrogen is excreted in the form of
Ans – Uric acid
5. Which of the following techniques are used in assaying monoclonal antibodies?
Ans – Flow cytometry
6. Which of the following synthetic polypeptides will form a triple helix?
Ans – (Pro-Gly-Gly)n
7. World Health Organisation (WHO) announced the eradication of small pox as a disease in the year
Ans – 1977
8. A disease that attacks many in a community simultaneously is
Ans – an epidemic
9. The term “Microbiology” was coined by
Ans – Louis Pasteur
10. Tumour causing viruses are known as
Ans – Tungro viruses
Soil Science
1. Soil pH is a measure of —>Soil acidity
2. Solonchack soil corresponds to —>Saline soil
3. Terai soils are deficient in —>Zinc
4. Crop most suitable for green manuring —>sunhemp
5. Best agricultural texture is found in —>Loamy soils
6. Father of soil testing —>M.L Troug
7. Element responsible for flocculation of soil —>Calcium
8. Clay particle size —><0.002mm
9. Kaolinite configuration is —>1:1type
10. Sesquioxides are oxides of —>Iron and aluminium
11. Natural soil aggregates are —>Peds
12. Particle size of 2mm to 7.5cm corresponds to —>Gravels
13. Purity of Gypsum —>Sulphur% Х 0.186
14. Cultivated soils have C:N ratio of —>10:1 to 12:1
15. Soil occurring highest in India —>alluvial soils
16. Partially decomposed organic matter —>Peat
17. Highly decomposed organic matter —>Muck soil
18. Father of pedology —>V V Dokuchaiv
19. Most widely occurring clay mineral —>Kaolinite
20. Ballast elements are —>Aluminium and Silica
(Agriculture One Liner)
21. Exchange of gases in soil takes placedue to —>diffusion
22. Most dominant mineral on earths crust —>feldspars ( recent 2015 – Bridgmanite )
23. Zero tillage was first introduced by —>USA
24. The metamorphic rock Quartz is derived from —>Sand stone
25. O horizon is found only in —>Forestsoils
26. Zone of maximum leaching—>A horizon
27. Zone of maximum accumulation —>B horizon / illuvial horizon
28. Zone of least weathering and dessication —>C horizon
29. Most suitable soil for crop cultivation —>Crumby soil
(Agriculture One Liner)
30. Analysis of sand , silt and clay content is done by —>Hydrometric method
31. Instrument used to measure Density of soil —>Pycnometer
32. For soil to exhibit plasticity —>minimum clay content of 15 %
33. Purity of color is given by —>Chroma
34. Soil color is given by —>Munsell color chart
35. ICAR has classified Indian soils into—>8 groups
(Agriculture One Liner)
36. Black cotton soil or —>Regur
37. Limited expansion clay mineral —>vermiculate
38. Soil having no zonal differentiation—>Alluvial soil
39. Soil most suitable for plantation crops—>Laterite soils
40. Highest removal of soil particles take place by —>Sheet erosion
(Agriculture One Liner)
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