primary spermatocyte a diploid cell that has derived from a spermatogonium and can subsequently begin meiosis and divide into two haploid secondary spermatocytes.
The primary Spermatocyte has a chromosome number of 46, the secondary Spermatocyte has 23.
4n=46 pairs=92 Chromosomes
there are 13 chromosomes, each with 2 sister chromatids
4 spermatids
lots :)