Long Answer Questions Five mark Each
QUESTIONS FROM STATE BOARD EXAMINATIONS :
Describe different types of cross pollination in plants.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : Differentiate between self and cross pollination. Mention two contrivances of each.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : Three different flowers are given to you in the practical class: (i) Maize (ii) Vallisneria (iii) Rose You are asked to group them on pollinating agents. Describe the adaptations of each flower related with agents of pollination.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : Describe pollen germination. Illustrate your answer with suitable diagrams.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : Explain the formation of embryo sac in plants.

Long Answer Questions Five mark Each QUESTIONS FROM CBSE BOARD EXAMINATIONS : (a) Explain the different ways apomictic seeds can develop. Give an example of each. (b) Mention one advantage of apomictic seeds to farmers. (c) Draw a labelled mature stage of a dicotyledonous embryo.

QUESTIONS FROM STATE BOARD EXAMINATIONS : Write the function of flower.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : Explain megasporogenesis till the formation of embryo sac. Support your answer with a labelled diagram.

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : Raja a science student observed the structure of mature embryo sac comprising antipodals, central cells and egg apparatus. Explain each one of them.

QUESTIONS FROM STATE BOARD EXAMINATIONS : Many ovules are present in ovary of:

Long Answer Questions Five mark Each QUESTIONS FROM STATE BOARD EXAMINATIONS : With the help of labelled diagrams, depict the stages of microspore maturing into a pollen grain.