S1P3E1R1M3A1T1O1G2E1N1E1S1I1S1
20 points
SPERMATOGENESIS is validvalid
formation of spermatozoa [n SPERMATOGENESES]
the formation of spermatozoa [n SPERMATOGENESES]
formation of spermatozoa [n SPERMATOGENESES]
the formation of spermatozoa [n SPERMATOGENESES]