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stigma
style
The carpel
ovary
ovule
megasporocyte
micropyle
Megasporogenesis
megaspore
Megasporogenesis
Megagametogenesis
antipodals
Polar
nuclei
synergids
Egg
nucleus
Megagametogenesis
antipodals
Polar
nuclei
synergids
Egg
cell
Mature female gametophyte = embryo sac
Review:
meiosis
Megasporocyte
(2N)
Megaspore
(N)
Megaspore
(N)
Mitosis and rearrangement
Megagametophyte contains the egg cell
Megagametophyte
(N)
Stamen
anther
filament
Pollen sac
microsporocyte
Cross section of an anther
microspore
microsporocyte
microsporogenesis
Review:
meiosis
microsporocyte
microsporogenesis
Next step: microgametogenesis
microspore
exine
Generative cell
Tube cell
nucleus
Pollen grain
pollination
Pollen germination
Generative
nucleus
Tube nucleus
sperm
Tube nucleus
Mature
microgametophyte
sperm
Tube nucleus
Review:
meiosis
microsporocyte
(2N)
microspore
(N)
microspore
(N)
Mitosis and rearrangement
microgametophyte contains the sperm
microgametophyte
(N)
antipodals
Polar
nuclei
synergids
Egg
cell
sperm
Tube nucleus
antipodals
Polar
nuclei
synergids
Egg
cell
sperm
Tube nucleus
3N
Primary
Polar
endosperm
nuclei
nucleus
2N
Zygote
Egg
cell
Double Fertilization
Seed coat
endosperm
embryo
fruit