4. 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

9. 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: