21. Exosporic gametophytes are normally bisexual, capable of producing both sperm and eggs. 22. These gametophytes are unisexual, producing either sperm or eggs but not both. 23. In plants with heteromorphic gametophytes , there are two distinct kinds of gametophytes. 24. In plants with heteromorphic gametophytes, there are two distinct kinds of gametophytes . 25. The relationship between the sporophyte and gametophyte varies among different groups of plants. 26. The conelet then overwinters again in the free-nuclear female gametophyte stage. 27. The bryophyte life-cycle is strongly dominated by the haploid gametophyte generation. 28. Antheridia are present in the gametophyte phase of cryptogams like bryophytes and ferns. 29. In flowering plants, the gametes are non-motile cells within gametophytes . 30. Evidence of the gametophyte archegonia ) on different axes.
