Inspired genetics problem
You hydrolyze some fruit fly DNA. Under the conditions you use, the DNA is broken down into dinucleotides. In your hydrolysate, you have all possible combinations of dinucleotides. Then, you purify the products (dinucleotides) and add all necessary fruit fly transcription factors, enzymes, and RNA mononucleotides and allow transcription to occur. After transcription, you theoretically purify the products such that only RNA dinucleotides are removed.
If you measure the proportions of the various RNA dinucleotides, you expect to find that the percentage of
I: AU = UA
II: AA = UU
III: AA = GG