▁to ▁court ▁multiple ▁females , ▁the ▁overall ▁re product ive ▁benefits ▁it ▁produces ▁has ▁kept ▁pol yg amy ▁as ▁the ▁preferred ▁sexual ▁choice . ▁ ▁The ▁mechanism ▁that ▁affect s ▁court ship ▁behavior ▁in ▁D ros oph ila ▁is ▁controlled ▁by ▁the ▁oscill ator ▁neur ons ▁D N 1 s ▁and ▁L ND s . ▁O sc ill ation ▁of ▁the ▁D N 1 ▁neur ons ▁was ▁found ▁to ▁be ▁effect ed ▁by ▁soci osex ual ▁interactions , ▁and ▁is ▁connected ▁to ▁m ating - related ▁decrease ▁of ▁evening ▁activity . ▁ ▁Model ▁organ ism ▁in ▁gen et ics ▁ ▁D . ▁mel an og aster ▁remains ▁one ▁of ▁the ▁most ▁studied ▁organ isms ▁in ▁bi ological ▁research , ▁particularly ▁in ▁gen et ics ▁and ▁development al ▁bi ology . ▁D . ▁mel an og aster ▁also ▁has ▁impact ▁in ▁environmental ▁studies ▁and ▁mut agen esis . ▁ ▁History ▁of ▁use ▁in ▁gen etic ▁analysis ▁▁ ▁D . ▁mel an og aster ▁was ▁among ▁the ▁first ▁organ isms ▁used ▁for ▁gen etic ▁analysis , ▁and ▁today ▁it ▁is ▁one ▁of ▁the ▁most ▁widely ▁used ▁and ▁gen et ically ▁best - known ▁of ▁all ▁e uk ary otic ▁organ isms . ▁All ▁organ isms ▁use ▁common ▁gen etic ▁systems ; ▁therefore , ▁compreh ending ▁processes ▁such ▁as ▁trans cription ▁and ▁rep lication ▁in ▁fruit ▁f lies ▁helps ▁in ▁understanding ▁these ▁processes ▁in ▁other ▁e uk ary otes , ▁including ▁humans . ▁ ▁Thomas ▁H unt ▁Morgan ▁began ▁using ▁fruit ▁f lies ▁in ▁experimental ▁studies