Multiple choice

The most important contribution of heterospory is

  1. variation in the size of spores

  2. development of seed habit

  3. reduction in number of spores

  4. increased nutrition to some of the spores
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 Heterospory results in the variation in the size of spores, which results in the formation of different sized spores, larger in female reproductive structure, which in the course of evolution gets modified into egg in the ovule and the smaller sized spores get modified into pollen grains, the male gametes. This modification results in fertilisation of egg in the ovary by male gametes derived from pollen grains and ultimately formation of seed.

Keep practicing — related questions