During spermatogenesis, what are the first haploid cells produced?

A) primary spermatocytes
B) spermatogonium
C) spermatids
D) sertoli cells
E) secondary spermatocytes

Primary Spermatocytes

Diploid cells that undergo meiosis I to form two secondary spermatocytes in the male reproductive system.

Spermatogonium

A type of male germ cell that undergoes mitosis to produce primary spermatocytes in the process of spermatogenesis.

Sertoli Cells

Sertoli cells are a type of supporting cell found within the seminiferous tubules of the testes, responsible for nourishing developing sperm cells.