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MCQ Questions for Class 12 Biology Set 1

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1. Pollination by Bat is called :




2. Anemophily takes place by:




3. Entemophily take place by




4. In higher plants, meiosis occurs?




5. Earthworm is:




6. An example of rhizome is




7. Budding is the example of :




8. What is hexapioid (on), in which total number, of chromosomes are 42. then number of chromosomes in its any gamete:




9. Asexual reproduction in Penicillium fungus usually takes place through?




10. When the gametes of two different strains fuse each other, then this process of reproduction is :




11. Vegetative reproduction takes place in Bacteria :




12. In potato, which structure takes part in vegetative reproduction?




13. Which structure takes part in gametogenesis :




14. Which of the following is viviparous?




15. In higher plants, fertilization is :




16. The reproduction takes place by gemma :




17. The example of bulb is:




18. The organism similar to parent can be obtained by:




19. The term scion is used in relation to :




20. Vegelative reproduction takes place in Bryophyllum :




21. Vegetative reproduction takes place in Agave:




22. Pollination in Lotus is:




23. Haploid plants develop by pollen are called ……..




24. Closed flower:




25. Demerit of self pollinatlon is:




26. Which structure is not found in Angiosperm?




27. Normal Embryosac of Angiosperm is :




28. Commonly in a mature fertilized ovule n, 2n, 3n conditions are respectively found in :




29. After fertilization ovule develops into:




30. Parthenogenesis is common in :




31. An orthrotropous ovule is one in which micropyle and chalaza are :




32. In an ovule meiotic takes place in:




33. In Capsella the endosperm in generally:




34. All of the following structures are found in angiosperms except ?




35. Totipotency is




36. Who proved that the cells are totipotent?




37. A typical angiospermic embryo sac is usually:




38. Fatheroflndian Angiosperm Embnology is:




39. If cotyledons are brought above the soil the germination is:




40. Polymbryony occurs in:




41. In Monocots, grafting is almost impossible because they lack :




42. Double fertilization in angiosperms was discovered by:




43. How many meiotic divisions are necessary to produce 100 pollen grains ?




44. Double fertilization means:




45. Pollination by bats is called:




46. Pollination by snails is called:




47. Development of fruit without fertilizations is:




48. Who discovered fertilization?




49. When more than one embryoper embryosac is found. It is called:




50. When pollen tube enter into the nucellus through micropyle is called: