A farkon shekara ta 1948, ta yi ban mamaki gano cewa duka biyu hadawa da Activator iya canzawa, ko matsayi, a kan chromosome. Ta lura da effects na transposition na Ac and D ta hanyar canzawa na mosaic launi a cikin mai hatsi iri iri na mai hatsi iri iri. Ta gano biyu sabon rinjaye da kuma interacting kwayoyin loci cewa ta mai suna Dissociation (Ds) da kuma Activator (Ac). Ta gano cewa Dissociation ba kawai dissociate ko sa chromosome karya, shi ma yana da wani iri-iri na effects a kan makwabta kwayoyin lokacin da Activator ma ba a halin yanzu, wanda ya hada da yin wasu barga mutations m. A farkon shekara ta 1948, ta yi ban mamaki gano cewa duka biyu hadawa da Activator iya canzawa, ko matsayi, a kan chromosome.
abubuwan sarrafawa