Multiple choice

Which of the following shows precocious development?

  1. Female gametophyte in pinus

  2. Male gametophyte in angiosperms

  3. Fern prothallus

  4. Female gametophyte in angiosperms
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The male gametophyte in angiosperms (pollen grain) is highly reduced and shows precocious development - it is mature and ready for germination at anthesis (flower opening), unlike in gymnosperms where gametophyte development continues after pollination. In Pinus, the female gametophyte develops slowly over months, while fern prothallus is an independent free-living gametophyte without precocious development.

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