Agriculture MCQ Quiz Hub

Agriculture Agriculture Genetics Plant Breeding and Biotechnology

Choose a topic to test your knowledge and improve your Agriculture skills

1. _______estimated that incompatibility occurs in more than 3000 species among 20 families of the flowering plants:




2. _______provides the best documented example of long time effects of selection:




3. ______ deteriorates drastically upon inbreeding:




4. _____ in Ladino clover is governed by two dominant alleles one produces cyanogenic glycoside while the other releases the enzyme to catalyze its release from gloycoside:




5. ______ are examples of protandrous species:




6. Experiments in Plant Hybridization a paper of G. Mendal was first published in the year:




7. If a gene is represented in an infinitely large random-mating population by adaptively neutral alleles A and a in the ration of qA: (1-q)2 aa = 1 is known as:




8. 2n - 1 is a:




9. 2n denotes:




10. A cell or an organism having one chromosome pair in addition to the normal somatic compliment of the species is:




11. A character dermined by many genes and does not show discrete variation is known as:




12. A complex of communities of plants and animals of a region existing under identical climatic conditions is called as:




13. A condition in which pollination and fertilization take place in an unopened flower is termed as:




14. A criss-cross inheritance is shown by:




15. A cybrid is:




16. A dry one chambered and one seeded fruit developing from a superior ovary with the hard and woody pericarp is:




17. A fruit which develops from an inflorescence is known as:




18. A fruit which is collection of simple fruits developing from the apocarpous pistil of a flower is known as:




19. A generative nucleus in the male gametophyte divides _____ to form two male gametes:




20. Zamikand and Taro (Colocasia) are example of:




21. A homozygous line developed by self-fertilization in a cross-pollinated crop is termed as:




22. A hybrid is always:




23. A large unit of natural vegetation in an area under identical condition (climatic) is called:




24. A maintainer line is:




25. A male gametophyte in angiosperms contains:




26. A male child would be born to parents if:




27. A mendelian population means:




28. A method of breeding most commonly used when the desired variation is required to be induced in a vegetatively propagated crop is:




29. A plant breeder is interested to control pollination to:




30. A mixture of two immiscible liquids shaken up is:




31. A plant bearing both male and female flowers is said to be:




32. A plant cell when put into a hypotonic solution it unlike animal cell does not brust because:




33. A plant with 2n = 20 will have how many linkage group:




34. A plant with genotype Gg Ww will produce gametes of which of the following types?




35. With the increase in temperature the solubility of solid in a liquid:




36. A restorer gene is present in:




37. A state of meiotic cell division when homologous chromosomes separate and move to different poles is known as:




38. A successful establishment of vegetation in a new locality means:




39. With four bases A U G and C the possible number of triplet cordons are 64. If there is no uracil the number of codons will be:




40. Wind pollination is also known as:




41. Acclimatisation is:




42. According to position of the ovule within the ovary an ovule may be:




43. Actual petrified remains of ancient plants and animals or impressions left by them in rocks are called:




44. Adjustment of individual to their environment by mean of special structures or of function of spoken of:




45. Adventitious roots grow from:




46. After the cell has undergone mitosis the amount of DNA in daughter cells will be:




47. Albinism in plants is associated with:




48. Alternative forms of a gene is known a:




49. An anticodonis a sequence of three nitrogenous bases found on:




50. An egg or sperm cell in plants is called:




51. An embryo sac of angiosperms generally contains:




52. An endospermic cell of a seed after somatic chromosome number (2n = 20) will have:




53. An individual having different alleles for any gene pair and producting two kinds of gametes is known as:




54. An association can be:




55. An organism having the gametic chromosome numbers is called as:




56. An organism with one extra chromosome (2n + 1) is instead of the normal diploid (2n) is known as:




57. Ascending portion of the axis of the plant developing directly from the plumule and bears leaves braches and flower is known as:




58. At the molecular level point mutations are due to:




59. At the stage incipient plasmolysis the turgor pressure is:




60. At the stage of fully turgid cell the suction pressure will be:




61. ATP synthesis occurs in:




62. Bacteria protozoa and other living plants and animals are:




63. Baldness in human being is a:




64. Barely is a ______ pollinated crop:




65. Biffin in 1905 announced that resistance to yellow rust of wheat is governed by ______ gene in crosses:




66. Binomial system of Nomenclature means that the name of plant is made up of two words which designate:




67. Bread wheat is:




68. A head or capitulum s is characteristic of:




69. Radish is an example of:




70. Origin of Species by means of Natural Selection was given by: