Spermatids: These are immature spermatocytes that form sperm cells.
Spermatogenesis is a process by which development of male gametes i.e. sperm within the male reproductive organs, the testes.
In this process, each sperm which is a haploid contains a single copy of each chromosome.
For haploid gamete formation, a cell undergoes the process of meiosis in which its genome is replicated and then further divided twice to produce four haploid gametes.
Spermatids are produced from secondary spermatocytes occurring after meiosis II.
Spermatids further transform into mature sperms by the process of spermiogenesis.