The ploidy level of a seed coat is typically diploid, meaning it contains two sets of chromosomes. This allows the seed coat to develop and protect the seed embryo inside during germination and growth.
3n
Its Hexaploid
Ploidy
Haploid (n)
23
2n
A zygote is a diploid
Human somatic cells are diploid, 2n. Human sex cells are haploid, n. Thus, the ploidy of human cells is 2, while n=23.
The aleurone layer is the outermost layer of the endosperm. Therefore it is also triploid and same as the ploidy of endosperm.
The micropyle is a hole in the seed coat, it is literally nothing. Hence it is not made of cells and has no chromosomes.
In metaphase II, the ploidy of the cell is haploid because it has a single set of chromosomes. This is the result of the separation of sister chromatids in meiosis I, which reduces the chromosome number by half.