iari.res.in Ph.D Microbiology Question Paper Model : Indian Agricultural Research Institute

Name of the University : Indian Agricultural Research Institute
Degree : Ph.D. Programme
Name Of The Subject : Microbiology
Document type : Model Question Paper

Website : iari.res.in
Download Model Question Paper: https://www.pdfquestion.in/uploads/7549-Microbiology.pdf

IARI Microbiology Model Paper

PART – I (General Agriculture) :
1. Who is the present Chairman of Protection of Plant Varieties and Farmers’ Right Authority (PPV&FRA)?
a) Dr. R.R. Hanchinal
b) Dr. P.L. Gautam
c) Dr. S. Nagarajan
d) Dr. Swapan K. Datta

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2. Which among the following is another name for vitamin B12?
a) Niacin
b) Pyridoxal phosphate
c) Cobalamin
d) Riboflavin
3. The largest share in India’s farm export earning in the year 2011-12 was from
a) Basmati rice
b) Non-basmati rice
c) Sugar
d) Guar gum
4. The National Bureau of Agriculturally Important Insects was established by ICAR in ________, was earlier known as _______.
a) Bangalore; PDBC
b) New Delhi; National Pusa Collection
c) Ranchi; Indian Lac Research Institute
d) New Delhi; NCIPM
5. The most important sucking pests of cotton and rice are respectively
a) Nilaparvata lugens and Aphis gossypii
b) Aphis gossypii and Thrips oryzae
c) Amrasca biguttula biguttula and Scirtothripsdorsalis
d) Thrips gossypii and Orseolia oryzae
6. Which of the following microorganism causes fatal poisoning in canned fruits and vegetables?
a) Aspergillus flavus
b) Penicillium digitatum
c) Clostridium botulinum
d) Rhizoctonia solani

7. The cause of the great Bengal Famine was
a) Blast of rice
b) Brown spot of rice
c) Rust of wheat
d) Karnal bunt of wheat
8. Actinomycetes belong to
a) The fungi
b) Eukaryote
c) Mycelia sterilia
d) None of the above
9. A virus-free clone from a virus infected plant can be obtained by
a) Cotyledonary leaf culture
b) Axenic culture
c) Stem culture
d) Meristem tip culture
10. Which of the following is not an objective of the National Food Security Mission?
a) Sustainable increase in production of rice, wheat and pulses
b) Restoring soil fertility and productivity at individual farm level
c) Promoting use of bio-pesticides and organic fertilizers
d) Creation of employment oppurtunities
11. Agmarknet, a portal for the dissemination of agricultural marketing information, is a joint endeavour of
a) DMI and NIC
b) DMI and Ministry of Agriculture
c) NIC and Ministry of Agriculture
d) DMI and Directorate of Economics and
Statistics
12. The share of agriculture and allied activities in India’s GDP at constant prices in 2011-12 was
a) 14.1%
b) 14.7%
c) 15.6%
d) 17.0%
13. The average size of land holding in India according to Agricultural Census 2005-06 is
a) 0.38 ha
b) 1.23 ha
c) 1.49 ha
d) 1.70 ha
14. ‘Farmers First’ concept was proposed by
a) Paul Leagans
b) Neils Rolling
c) Robert Chamber
d) Indira Gandhi
15. In the year 2012, GM crops were cultivated in an area of
a) 150 million hectare in 18 countries
b) 170 million hectare in 28 countries
c) 200 million hectare in 18 countries
d) 1.70 million hectare in 28 countries
16. The broad-spectrum systematic herbicide glyphosate kills the weeds by inhibiting the biosynthesis of
a) Phenylalanine
b) Alanine
c) Glutamine
d) Cysteine
17. At harvest, the above ground straw (leaf,sheath and stem) weight and grain weight of paddy crop are 5.5 and 4.5 tonnes per hectare, respectively. What is the harvest index of paddy?
a) 45%
b) 50%
c) 55%
d) 100%
18. Crossing over between non-sister chromatids of homologous chromosomes takes place during
a) Leptotene
b) Pachytene
c) Diplotene
d) Zygotene
19. The term ‘Heterosis’ was coined by
a) G.H. Shull
b) W. Bateson
c) T.H. Morgan
d) E.M. East
20. When a transgenic plant is crossed with a non-transgenic, what would be the zygosity status of the F1 plant?
a) Homozygous
b) Heterozygous
c) Hemizygous
d) Nullizygous
21. The highest per capita consumption of flowers in the world is in
a) The USA
b) India
c) Switzerland
d) The Netherlands
22. Which of the following is a very rich source of betalain pigment?
a) Radish
b) Beet root
c) Carrot
d) Red cabbage
23. Dog ridge is
a) Salt tolerant rootstocks of mango
b) Salt tolerant rootstocks of guava
c) Salt tolerant rootstocks of grape
d) Salt tolerant rootstocks of citrus
24. Which of the following micronutrients are most widely deficient in Indian soils?
a) Zinc and boron
b) Zinc and iron
c) Zinc and manganese
d) Zinc and copper
25. Which of the following fertilizers is not produced in India?
a) DAP
b) Urea
c) Muriate of potash
d) TSP
26. What is the estimated extent of salt affected soils in India?
a) 5.42 mha
b) 7.42 mha
c) 11.42 mha
d) 17.42 mha
27. Which of the following is not a feature of watershed?
a) Hydrological unit
b) Biophysical unit
c) Socio-economic unit
d) Production unit
28. Correlation coefficient ‘r’ lies between
a) 0 and 1
b) -1 and 1
c) -1 and 0
d) 0 and ?
29. For the data 1, -2, 4, geometric mean is
a) 2
b) 47
c) – 3
d) -2
30. The relationship between Arithmetic mean (A), Harmonic mean (H) and Geometric mean (G) is
a) G2=AH
b) G= A+H
c) H2=GA
d) A2=GH