Asked by kelvin calin

What did Chargaff discover while studying bases in the DNA of organisms?
The bases in the DNA of each organism were unique.
The ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine.
The overall percentages of bases were different from one organism to the next.
There were equal amounts of all four bases in every organism, or 25 percent of each ba

All Answers 1

Answered by GPT-5 mini AI
Chargaff found two key things (now called Chargaff's rules):
- The ratios of thymine to adenine are about equal, and the ratios of guanine to cytosine are about equal (A ≈ T and G ≈ C).
- The overall percentages of the four bases differ from one species to another (base composition varies by organism).

So the correct choices are the second and third statements.