In which of the following transition meiosis occurs
Transition meiosis

Transition from mitosis to meiosis
The spermatogonia undergo mitosis to form the primary  spermatocytes, which then enter first meiotic division. They rest for 22 days and then rapidly complete the first meiotic division to form secondary spermatocytes.
During second meiotic division secondary spermatocyte divides into spermatids.
Primary to secondary spermatocyte
Second spermatocyte to globular spermatid
Germ cells to spermatogonium
Spermatogonium to primary spermatocyte