Dear Student ,
Considering if the ploidy of plant is 2n, Nucellus(located within the integumentary) have abundance reserve food materials. Its ploidy is 3n.
If the chromosomal number in the nucleus of nucleus cells of an ovule is 24, 8 would be the chromosome number in the nuclei of an egg (1n).
ploidy level of polar nucleus will be 16 (1n + 1n)
ploidy level of synergies will be 8 (1n)
Regards