RAEO Previous Year Questions: 02
This page includes previous year questions from RAEO 2018-19 exams.
Also read: RAEO Previous Year Questions (2019)
RAEO Questions 2018-19
Soil science MCQ
Also read: Soil Science MCQ: Multiple Choice Questions
Question 01. In which type of soil is mole drains suitable?
(a). Very coarse soil
(b). Medium coarse soil
(c). Sandy loam soil
(d). Fine texture Soil
Question 02. Which is true about tarai-alluvial soil?
(a). It is rich in nitrogen and organic matter
(b). Different in phosphorus
(c). Both a and b are true
(d). None of the above
Question 03. Which is the most suitable soil for crop production?
(a). Black soils
(b). Alluvial soils
(c). Laterite and lateritic soils
(d). All of the above
Question 04. By what name is the minimum wind velocity required to initiate movement of soil particles known as?
(a). Critical velocity
(b). Threshold velocity
(c). Dynamic threshold velocity
(d). Intrinsic velocity
Question 05. What is the process of the formation of alluvial soils?
(a). The deposition of sediments by rivers, its tributaries and other streams
(b). Erosion of uplands
(c). Landslides in hill areas
(d). None of the above
CG RAEO Questions
Question 06. On which factors does pump efficiency depend?
(a). Hydraulic efficiency and volumetric efficiency
(b). Hydraulic efficiency and mechanical efficiency
(c). Hydraulic efficiency, volumetric efficiency and mechanical efficiency
(d). Volumetric and mechanical efficiency
Question 07. Which is not correctly matched?
(a). Micropropagation: In vitro production of plants in large scale
(b). Callous: Unorganised mass of cell
(c). Somatic hybridization: Fusion of two diverse cell
(d). Vector DNA: Site for t-RNA synthesis
Question 08. Which is the most commonly used probe for the detection of glycoprotein?
Question 09. Which of the following drug was produced for the first time by using recombinant DNA technology?
Question 10. Which method of breeding is used to improve the specific character of a well adapted variety?
(a). Back cross breeding
(b). Pureline selection
Rural Agriculture Extension Officer
Question 11. Breeding refers to selection procedure in which the segregating population of self pollinated species is grown without selection?
(c). Bulk breeding
(d). Back crossing
Question 12. What is the cause-pollination of onion?
Question 13. Which of the following consist of recombinant closed cells containing different fragment of a complete genome?
(a). DNA probes
(b). Homologous recombinants
(c). Genomic libraries
(d). Knockout organisms
Question 14. Which of the following enzyme is known as molecular glue?
(a). DNA ligase
(b). Restriction endo nuclease
(c). DNA polymerase
(d). Both a and c
Question 15. By what name is a progeny obtained cross between two inbreds or varieties referred as?
(a). Single cross hybrid
(b). Double cross hybrid
(c). Top cross hybrid
(d). Double top cross hybrid
Plant Breeding MCQ
Also read: Plant Breeding Objective Questions
Question 16. Which is the oldest selection method for improvement of both self and open pollinated crop plants?
(a). Mass selection
(b). Pure line selection
(c). Pedigree selection
(d). Recurrent selection
Question 17. Mallika is the result of which of the following combinations?
(a). Neelam × Dashehari
(b). Dashehari × Neelam
(c). Neelam × Alphanso
(d). Ratna × Alphanso
Question 18. Which type of crop is okra?
Question 19. Which is the agent for cross-pollination in cauliflower?
(a). Honey bee
Question 20. Which of the following condition favours cross pollination in which the flowers produce functional or viable pollen grains but fail to fertilize the same flower or any other flower of the same plant?
(b). Self incompatibility
(c). Male sterility
(d). Cytoplasmic gametic male sterility
Plant breeding and genetics quiz
Question 21. The person who was not involved directly in the discovery of 3D structure (double helical) of DNA.
(a). Francis Crick
(b). Rosalind Franklin
(c). Maurice Wilkins
(d). Linus Pauling
Question 22. A male sterile line which is always used as a female parent in hybrid seed production program represents:
(a). A line
(b). B line
(c). R line
(d). Pure line
Question 23. Which of the following is correct order of the type of seed with respect to generic purity in decreasing order?
(a). Nucleus seed, breeder seed, truthfully labelled seed
(b). Breeder seed, truthfully labelled seed, nucleus seed
(c). Nucleus seed, truthfully labelled seed, breeder seed
(d). Truthfully labelled seed, breeder seed, nucleus seed
Question 24. Pusa Ruby is a cross between which of the following option?
(a). Sioux × Improved Meeruti
(b). Hybrid No. 6 × Sioux
(c). SL120 × Sweet 72
(d). HS101 × Sioux
RAEO Previous Year Questions
Question 25. What is the isolation distance for foundation seed production of water melon?
(a). 800 m
(b). 400 m
(c). 200 m
(d). 100 m
Question 26. Which of the following condition/factor cause the failure of plant to produce functional pollen, anthers and male gametes?
(a). Self incompatibility
(b). Male sterility
(d). Cytoplasmic male sterility
Question 27. By what name is a cabbage pod known as?
Question 28. Which is the most important commercial application of male sterility phenomenon?
(a). Marker Assisted Selection
(b). Marker Ass. Backcrossing
(c). Mass Multiplication
(d). Hybrid seed production
Question 29. What should a vector must contain which is used for gene cloning and transfer?
(a). Ori site, selectable marker gene and replication site
(b). Ori site, restriction endonuclease and circular DNA
(c). Ori site, selectable marker gene and restriction endonuclease site
(d). Only restriction endonuclease site
Question 30. Which of the following is related to amaranthus variety CO-1?
(a). A. dubius
(b). A tricolour var. tristis
(c). A. hypochondriacus
(d). A. tricolor
Question 31. Which floral behaviour is responsible for cross pollination in bhindi, chilli and brinjal?
(d). Male sterility
Question 32. What should be the ratio of segregation in dihybrid cross in F2 generation?
(d). None of the above
Question 33. Which is the pedigree for Pusa Jwala?
(a). NP46A × Puri Red
(b). Puri Red × Local
(c). NP46A × Local Kanduri
(d). Kunta × PMR6
Question 34. At which of the following phases of meiotic cell division does the homologous chromosome separate?
(a). Metaphase I
(b). Metaphase II
(c). Anaphase I
(d). Anaphase II
Genetics questions raeo
Question 35. Why are boarder rows of host plants planted in fields having Bt gene carrying GM crops?
(a). To protect stray cattle feeding on it
(b). To insure physical barrier to human
(c). To allow growth of target and non target insects
(d). Both a and b
Question 36. Which of the following method is used for transfer of recessive disease resistance gene in crop varieties?
(a). Pedigree method
(b). Backcross breeding
(c). Single seed descent method
(d). Test cross method
Question 37. What is the cause of moko disease of banana?
Question 38. Which of the following is not an insect pest of paddy?
(a). Stem borer
(b). Gundhi bug
Question 39. Which of the following selective herbicide is used in wheat crop?
(d). None of the above
Question 40. What is the yield reduction in paddy due to weeds?