Question

diploid secondary nucleus in embryosac of angiosperms is the product of​

Answer 1

Answer:

The two polar nuclei get fused prior to fertilisation and form a diploid secondary nucleus

Explanation:

A mature embryo sac is a 7-celled and 8-nucleate structure. At the micropylar end, is present the egg apparatus which consists of one egg cell or oosphere and two synergids, thus, 3 nuclei are contained in egg apparatus. Other three nuclei are contained in three Antipodal cells present at the chalaza end. The rest two nuclei form a large central cell present in the centre of the embryo sac. The two polar nuclei get fused prior to fertilisation and form a diploid secondary nucleus.