Deoxyribonucleic acid

(DNA)

-organic chemical of complex molecular structure that is found in all prokaryotic and eukaryotic cells and in many viruses

-DNA codes genetic information for the transmission of inherited traits

Erwin Chargaff

•the amount of (A)denine will

always equal the amount of

(T)hymine

•the amount of (G)uanine will

always equal the amount of

(C)ytosine.

- was a biochemist who first figured out the

equation for the different bases. Here is what he

concluded: