PHYSICAClass 12 Botany simulations · Sexual Reproduction in Flowering Plants
Development of the embryo sac
Step through megasporogenesis and the three free-nuclear divisions that build the 7-celled, 8-nucleate embryo sac.
What to notice
At the micropylar end: egg apparatus (2 synergids + egg); at the chalazal end: 3 antipodals; centre: 2 polar nuclei.
Key relation
1 functional megaspore → 3 mitoses → 8 nuclei → 7 cells (monosporic development)
Try this
Count the nuclei and the cells at the final stage.
What you can change
- Stage: 1 to 7
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