Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Sexual Reproduction in flowering Plants

Short Answer Type

41. What is pollination ? Name different types of pollination.

307 Views

42. What do you understand by double fertilization ?

407 Views

43. Give an account of significance of double fertilization.

944 Views

Long Answer Type

44. What is bagging technique ? How is it useful in plant breeding programmes ?

944 Views

Short Answer Type

45. What is meant by emasculation ? When and why does a plant breeder employ this technique ?

Emasculation is the removal of anthers from the flowers before it dehisces, using a pair of forceps.

Emasculation is applied by plant breeders to carry out artificial hybridization. It helps them to achieve cross-pollination and prevent self pollination. It helps in producing commercially superior varieties of plant and combining desirable qualities of two plants in one by cross pollination.

413 Views

46. Compare the structure of a non-endospermic (non-albuminous) seed with an endospermic (albuminous) dicot seed.

258 Views

Long Answer Type

47. Differentiate between microsporogenesis and megasporogenesis. Which type of cell division occurs during these events ? Name the structures formed at the end of these two events.

1552 Views

Short Answer Type

48. Arrange the following terms in a correct development sequence :
Pollen grain, sporogenous tissue, microspore tetrad, pollen mother cell, male gamete.

369 Views

49. What do you mean by monosporic development of female gametophyte ?

769 Views

50. With a neat diagram explain the 7-celled, Eight nucleate mature female gametophyte.

410 Views