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Grade 12Zoology

DOES THE SEED REPRESENT 2 OR 3 GENERATIONS?
IN UNFERTILISED OVULE THERE ARE 2 STAGES ,CAN WE CONSIDER THEM AS 2 GENERATIONS?

Profile image of JITENDRA
8 Years agoGrade 12
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1 Answer

Profile image of Arun
8 Years ago
The seed of Pinus consists of tissues representing three generations:
1. The testa, tegmen and the nucellar cap represent the parts of the old sporophyte, the Pinus tree.
2. The endosperm surrounding the embryo represents the female gametophyte.
3. The embryo represents the dormant future sporophyte.

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