11. There are two types of spermatocytes, primary and secondary spermatocytes ( Figure 1 ). 12. Primary and secondary spermatocytes are formed through the process of spermatocytogenesis ( Figure 3 ). 13. Asynaptic regions are associated with BRCA1, kinase ATR and ?H2AX presence in pachytene spermatocytes . 14. This gene is expressed primarily in spermatocytes . 15. The initial cells in this pathway are called spermatogonia, which yield primary spermatocytes by mitosis. 16. It is observed on spermatogonia and primary spermatocytes , and in some prostate and breast cancers. 17. The protein localizes to the axial elements of chromosomes during meiosis in both oocytes and spermatocytes . 18. It is suggested that a passive mechanism involving asynaptic region clustering in spermatocytes is a possible cause. 19. NLRP14 is found exclusively in the testes where it is expressed within spermatogonia, spermatocytes and spermatids. 20. Spermatocytogenesis is the male form of secondary spermatocytes , which will later divide once more into haploid spermatids.
