_______is a basal part of the Ovule ,

Explanation

(i) The main part of the ovule is the nucellus which is enclosed by two integuments leaving an opening called as micropyle .

(ii) The ovule is attached to the ovary wall by a stalk known as funiculus . chalaza is the basal part .
(iii) The embryo sac contains seven cells and eight nuclei located within the nucellus .
(iv) three cells at the micropylar end form the egg apparatus and the three cells at the chalaza end are the antipodal cells .
(v) The remaining two nuclei are called polar nuclei found in the centre .
(vi ) In the egg apparatus one is the egg cell ( female gamete ) and the remaining two cells are the synergids.