Erwin chargaff studied the dna of organismswithin a single species. chargaff discovered thatthe amount of adenine is about equal to the amountof thymine. which of these explains why the ratioof adenine to thymine is nearly 1: 1

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.