Sporophyte
2n
Gametophyte
1n
Meiosis
Syngamy
Young
Sporophyte
2n
Spores
1n
Antheridium
1n Archegonium
1n
Gametophyte
1n
Figure 2.1.1 Life Cycle in Mosses
Mature
Sporophyte
2n
Gametophyte
1n
Meiosis
Young
Sporophyte
2n
Zygote
2n
Syngamy
Spores
1n
Archegonium
1n
Antheridium
1n
Figure 2.1.2 Life Cycle in Ferns
Figure 2.1.3 Life Cycle in Angiosperms
Gametophyte
1n
Gametophyte
1n
Meiosis
Microsporangia
Megasporangium
Meiosis
Mature
Sporophyte
2n
Young
Sporophyte
2n
Zygote
2n
Seed Germination
Embryo
2n
Endosperm
3n
PMC
MMC
Double
Fertilization