Heterosporous Life Cycle at Life

Heterosporous Life Cycle. Most of the pteridophytes are homo­sporous, produce. 1 strobilus axis, 2 scale, 3 microsporangium, 4 macrosporangium.

Therefore, they generate microspores, which will produce pollen grains as the male gametophytes, and megaspores, which will form an ovule that contains female gametophytes. What is a heterosporous life cycle? The adult, or sporophyte, phase is the main phase of an angiosperm's life cycle.

Biology Pteridophytes askIITians

It is characterized by morphologically dissimilar spores produced from two types of sporangia: A heterosporous life history occurs in some pteridophytes and in all seed plants. As with gymnosperms, angiosperms are heterosporous. The embryo, however, is produced by the fusion of gametes, which are formed only by the haploid generation.