Awon eeyan  ti o  ri iyato leyin abere ajesara ikeji le ri iyato ti won ba gba ajesara yii sara  tabi Afikun ida ajesara yii tabi ida meji Ajesara jedojedo A ati B.. 
jẹ́ ọ̀jọ̀jọ̀ ìmọ̀ Biochemistry Biochemistry àti Biophysics ní University of California, San Francisco.. 