Asexual and Sexual Reproduction in Plants — BIO BOTANY STD 12 — Question
Tamilnadu BoardEnglish MediumSTD 12BIO BOTANYAsexual and Sexual Reproduction in Plants3 Marks
Question
Give an account on Helobial endosperm.
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Answer
Helobial endosperm: Primary Endosperm Nucleus moves towards base of embryo sac and divides into two nuclei. Cell wall formation takes place leading to the formation of a large micropylar and small chalazal chamber. The nucleus of the micropylar chamber undergoes several free nuclear division whereas that of chalazal chamber may or may not divide. Examples : Hydrilla and Vallisneria.
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