Explain how sexual reproduction occurs in gymnosperms.
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Gymnosperm sexual reproduction involves:
- Pollination: Wind-dispersed pollen grains reach the ovule's micropyle
- Pollen tube formation: The pollen grain germinates, forming a tube that grows through nucellus tissue
- Fertilization: The pollen tube delivers male gametes to archegonia within the megagametophyte
- Syngamy: Male gamete fuses with egg cell, forming a diploid zygote
- Embryogenesis: Zygote develops into embryo; ovule matures into a naked seed (not enclosed in fruit)
Suggested Q&A
General · Class 12- GeneralClass 12Electric Field at Centre of Ring with Non-Uniform Charge Distribution. Four quadrants carry linear charge densities: +2λ, −2λ, +λ, −λ. Find electric field at centre.
- GeneralClass 12P°(hexane) = 408 Torr, P°(heptane) = 141 Torr. x(hexane) = 0.300. Find Y₆ and Y₇.
- GeneralClass 122N₂O₅(g) → 4NO₂(g) + O₂(g). Initial P = 50 mmHg; P at 30 min = 87.5 mmHg. Find P at 60 min.
- GeneralClass 12What is the difference between psychosis and neurosis?
- GeneralClass 12What is the difference between prism and a pyramid?
- GeneralClass 12What is the difference between phrase and clause?