Double fertilization
In Botanical, the double fertilization is a function particular to the reproduction of the Angiosperme S. the grain of Pollen contains three core X (all Haploïde S), whereas for example the spermatozoon of the mammals contains only one of them. One of these cores will not take part in fecundation (vegetative core). Another is intended to fertilize the Oosphère, which will give the embryo, at the origin of the future plant. And the third links with the polar cores at the origin of the Albumen, fabric then triploid (3n chromosomes) which belongs to the Graine and which will be generally used to nourish the embryo.
External bond
- double fertilization at the angiospermes with the example of a flower of Cherry tree. (animation flash).
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