BIOL 1002 Study Guide - Midterm Guide: Ovule, Microspore, Asexual Reproduction
Document Summary
Many plant species can reproduce both sexually and asexually. Fragmentation can be an artificial process (cuttings) or a natural process. The parent plant sends out horizontal stems (runners) that can lead to completely new plants. Asexual reproduction is natural cloning where all the offspring are genetically identical to the parent plant. Sexual offspring combine the genes from two parents and are genetically different from their parents. 2 distinct multicellular adult forms sporophyte: diploid plant which produces haploid spores gametophyte: haploid plant which produces gametes. In mosses and ferns the gametophyte is small and independent. In seed plants, gymnosperms and angiosperms, the gametophyte is very small and relies on the sporophyte (it"s part of the sporophyte) Water no longer needed for transporting the gametes. Two types of spores are seen in the flowering plants. Megaspores - gives rise to the female gametophyte. Microspores - gives rise to the male gametophyte.
