Based on research of sexual intercourse reversal in hemp, it had been to start with described by K. Hirata in 1924 that an XY sex-perseverance system is current.[29] At time, the XY system was the only identified system of intercourse determination. The X:A system was to start with described in https://emilianogkhkm.link4blogs.com/54665543/cannabis-fundamentals-explained