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GyanMul Prep · NEB +2 · Science · Grade 12

Biology (Science, Grade 12)

Everything on these tabs is Biology (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

GyanMul Prep · NEB +2 · Science · Grade 12

Biology (Science, Grade 12)

Everything on these tabs is Biology (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

Chapter 9 of 40 · Biology (Science, Grade 12)

Pollination and Fertilization

3 topics
Board exam — Embryology, 5 marks across 4 chapters
20 solved questions

Getting the gametes together — self and cross pollination and their agents, the three routes a pollen tube may take into the ovule, and the double fertilization unique to flowering plants.

Practise this chapter Read solved questions

Topics

What the syllabus defines for this chapter

1Self and cross pollination; agents of pollination
2Entry of the pollen tube: porogamy, chalazogamy and mesogamy
3Double fertilization and triple fusion