am us . ▁ ▁Development ▁ ▁Gon ads ▁start ▁developing ▁as ▁a ▁common ▁prim ord ium ▁( an ▁organ ▁in ▁the ▁earliest ▁stage ▁of ▁development ), ▁in ▁the ▁form ▁of ▁g on adal ▁rid ges , ▁and ▁only ▁later ▁are ▁differenti ated ▁to ▁male ▁or ▁female ▁sex ▁org ans . ▁The ▁presence ▁of ▁the ▁S RY ▁gene , ▁located ▁on ▁the ▁Y ▁chrom os ome ▁and ▁encoding ▁the ▁test is ▁determ ining ▁factor , ▁determ ines ▁male ▁sexual ▁different iation . ▁In ▁the ▁absence ▁of ▁the ▁S RY ▁gene ▁from ▁the ▁Y ▁chrom os ome , ▁the ▁female ▁sex ▁( ov aries ▁instead ▁of ▁test es ) ▁will ▁develop . ▁ ▁The ▁development ▁of ▁the ▁g on ads ▁is ▁a ▁part ▁of ▁the ▁development ▁of ▁the ▁ur inary ▁and ▁re product ive ▁org ans . ▁ ▁See ▁also ▁▁ ▁Gon ados om atic ▁Index ▁ ▁Hyp oth al am ic – p itu it ary – gon adal ▁axis ▁ ▁References ▁ ▁Category : G lands ▁Category : End ocr ine ▁system ▁Category : H uman ▁re product ive ▁system <0x0A> </s> ▁Peter house , ▁Mar onder a ▁may ▁refer ▁to ▁▁ ▁Peter house ▁Boys ' ▁School ▁ ▁Peter house ▁Girls ' ▁School <0x0A> </s> ▁W T KS ▁may ▁refer ▁to : ▁▁ ▁W T KS - FM , ▁a ▁radio ▁station ▁( 1 0 4 . 1 ▁FM ) ▁lic ensed ▁to ▁C ocoa ▁Beach , ▁Florida , ▁United ▁States ▁ ▁W T KS ▁( AM ), ▁a ▁radio ▁station ▁( 1