The seed formation gymnosperms occur due to permanent retention of _____?

بیج کی تشکیل جمناسپرم _____ کی مستقل برقرار رکھنے کی وجہ سے ہوتی ہے؟

Nanospore

Megaspore

Microspore

None of these

Gymnosperms form seeds by permanently retaining the megaspore within the ovule, which develops into the female gametophyte.

This retention provides a nutritive tissue that supports the developing embryo, leading to seed formation.