Ukwabelana ngesondo

Isini luphawu olugqibayo enoba into evelisa iintlobano zesini ivelisa iigamete zenkunzi okanye zamabhinqa .   Izityalo zamadoda kunye nezilwanyana zivelisa i-gametes encinci ehambayo (i-spermatozoa, i-sperm, i-pollen ), ngelixa abafazi bavelisa ezinkulu, ezingenayo i-motile ( i-ova, edla ngokubizwa ngokuba ngamaseli eqanda).  Izinto eziphilayo ezivelisa zombini ezi ntlobo zezilwanyana zibizwa ngokuba zii <em>hermaphrodites .   Ngexesha lokuzala, iigametes zamadoda nabasetyhini ziyadibana ukuze zenze ii-zygotes, ezikhula zibe yinzala efumana iimpawu kumzali ngamnye.

Amadoda kunye nabasetyhini beentlobo banokuba nokufana komzimba (i-monomorphism yesondo) okanye iyantlukwano (i- sexual dimorphism ) ebonisa iingcinezelo ezahlukeneyo zokuzala kwisini esahlukileyo. 

kodwa ukuba isondo asinayo iincopho ezijoliswe ekuzaleni, ngoko ke &egrave; ngokuchasene nemvelo kwaye &egrave; ngoko ke isenzo esingcolileyo.