1.

List any four important characters of gymnosperms. Give two examples.

Answer»

Important characters of gymnosperms :

  • Naked seed plants
  •  Stems branched or unbranched
  •  Leaves simple/ compound
  • Heterosporous
  • Spores produced within sporangia that are borne on a sporophyll which form strobili or cones
  • Male and female cones are borne on the same or different trees.
  • Microspores develop into highly reduced male gametophyte.
  • Megaspores develop into female gametophyte that bears 2 or more archegonia/female sex organs.
  • Male and female gametophytes do not have independent existence.
  • Pollination by wind/air
  •  After fertilization, ovule develops into seeds and zygote develops into an embryo.


Discussion

No Comment Found

Related InterviewSolutions