Micro- and Megasporogenesis Explained — NEET Biology
📚 Practice ConceptDifferentiate between microsporogenesis and megasporogenesis. Which type of cell division occurs during these events? Name the structures formed at the end of these two events.
Match the floral events with corresponding changes: List 1 A. Floral Primordium B. Pollen Mother Cell C. Functional Megaspore D. Vegetative Cell List 2 I. Undergoes meiosis to form microspores II. Forms embryo sac via mitosis III. Produces pollen tube IV. Formation of androecium and gynoecium
View solution & NCERT explanation
Correct answer: C — A–IV, B–I, C–II, D–III
The four floral events matched in the question are distinct stages in reproduction. The Floral Primordium is the initial structure whose differentiation leads to the formation of the male (androecium) and female (gynoecium) parts of the flower. The Pollen Mother Cell is the diploid cell within the anther that undergoes meiosis to produce haploid microspores. The Functional Megaspore is the single surviving haploid cell that undergoes mitosis to develop into the mature embryo sac. Finally, the Vegetative Cell is the larger cell within the pollen grain responsible for forming the pollen tube upon germination, which guides the male gametes to the ovule.
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