Agriculture MCQ Quiz Hub

Agriculture Agriculture Genetics Plant Breeding and Biotechnology Set-4

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1. Specific combining ability of the parents should be high in order to develop:




2. Spikelets are characteristic of the family:




3. Sporogenesis means:




4. Stems often bear:




5. Sterility is most pronounced in the F1 generation following:




6. Sterility incompatibility of distant crosses can e overcome to produce hybrids by:




7. Stilt roots are produced from:




8. Sudden and sharp change in individual and is directly inherited by the offspring is called:




9. Sunflower is:




10. Superiority of heterozygote leads to:




11. System of classification proposed by Hutchinson is:




12. Tetraploid potato has 48 chromosomes whereas ordinary piploid species have _______ chromosomes:




13. Which of the following material makes the protein chain?




14. Which of the following leads to the cross-pollination?




15. The application of principles of genetics for the improvement of mankind is:




16. The attraction between two dissimilar molecules is:




17. Which of the following is sub-aerial modification of stem?




18. The basis on which evolution works is:




19. The best-known artificial system of classification is that promulgated by:




20. The best method to break the unfavourable linkage is:




21. The best method to carry forward the maximum number of genotypes/genes to the advanced generations against the force of natural selection is:




22. The botanical name of the onion is:




23. The branch of genetics concerned with the study of frequencies of mating populations is:




24. The cell sap of cell A has an osmotic potential of -14 bars and turgor pressure of 4 bars. Cell B has a water potential of -16 bars and osmotic potential of -24 bars. The water movement will be:




25. The chromosomal aberrations include:




26. The chromosomes are attached to the spindle fibre by means of:




27. The commonest form of the ovule is:




28. The components of synthetic population would have already been tested for:




29. Which of the following is ploidy level of common wheat?




30. The condition in which the anthers and stigmas of a bisexual flower mature at the same time is known as:




31. The condition in which the pollen of a flower has no fertilizing effect on the stigma of the same flower is called:




32. The definitive nucleus on fertilization gives:




33. The diffusion of water through a differentially permeable membrane is called:




34. The DNA is made up of the following four bases:




35. The edible part of the apple is:




36. The effect of the genotype of the pollen grain on the phenotype of the seed is termed as:




37. The embroid (formed by vegetative cell) develops into a plant which in fact grows out of anther as in:




38. The evolutionary history of a species is referred as:




39. The factor that determine the movement of solutes through a membrane is:




40. The fibrous fruit of coconut is dispersed by:




41. The first easily observed sign of a water deficit in a plant is decrease in the tugor of its:




42. The first generation progeny of a hybrid are called:




43. The first inbreeding experiments with maize were those reported by:




44. Which of the following is not xerophytic plant?




45. The flattened lateral outgrowth of the stem or the branch developing exogenously from a node and having a bud in its axil as known as:




46. The fleshy edible part of the mango fruit is:




47. The fleshy food storage tissue lying immediately with in perisperm is called:




48. The following character in human beings can explain the sex linked inheritance:




49. The following organelles also contain DNA:




50. The following part of the chromosome is responsible for the movement of chromosome/chromatid to different poles:




51. Which of the following ions is involved in the opening and closing of stomata?




52. The fruit of Acacia is:




53. The fruit of cumin or coriander is known as:




54. The fruits of cucurbitaceae is:




55. The fusion of a male gamete with two polar nuclei is often termed:




56. The genes that intensify or diminish the effect of major genes are known as factors:




57. The green expanded part of leaf is called as:




58. The group of plants which bear flowers and seeds are known as:




59. The haploid phase in plants is called :




60. The hydrophytes float on water because of the presence of:




61. The inflorescence of banana is known as:




62. The initial pool of a composite population is composed of:




63. The initial gene pool of a synthetic population is composed of:




64. The jointed stem with solid nodes and hollow internodes is called:




65. The life first originated in:




66. The life-cycle of an angiosperm is consist of:




67. The main body of ovule is called:




68. When the pistil has all the carpals united together it is said to be:




69. The main patterns concerning origin and domestication of cultivated plant species are:




70. The main reason for the classification of plants is: