In Pinus/gymnosperms, the haploid structure are
Correct answer: B. Megaspore, pollen grain and endosperm
- A. Megaspore, endosperm and embryo
- B. Megaspore, pollen grain and endosperm
- C. Megaspore, integument and root
- D. Pollen grain, leaf and root
Explanation
The haploid structures in Pinus/gymnosperms are megaspore, pollen grain, and endosperm. Megaspore: The megaspore is a haploid cell that is produced by meiosis in the ovule. It develops into the female gametophyte. Pollen grain: The pollen grain is a haploid cell that is produced by meiosis in the microsporangium. It develops into the male gametophyte. Endosperm: The endosperm is a triploid tissue that is produced by the fusion of a male gamete and two female nuclei. It provides nourishment to the developing embryo.
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About Kingdom Plantae
Plants are multicellular, photosynthetic eukaryotes with cellulose cell walls, chloroplasts and large vacuoles. Coverage includes alternation of generations, vascular and non-vascular plants, seedless and seed-producing groups, gymnosperms and angiosperms, and the distinction between monocot and dicot features.
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