Figure 1
A. Adenine periodicity in Drosophila melanogaster exons (Nexons = 32,760); B. Adenine periodicity in simulated coding sequences (Ngenes = 13,065) created by GENERATE using D. melanogaster CUF; C. Adenine periodicity in simulated coding sequences (Ngenes = 13,065) created by GENERATE using equal frequencies of all non-stop codons and D. melanogaster frequencies of stop codons and D. Adenine periodicity in simulated coding sequences (Ngenes = 13,065) created by GENERATE using equal frequencies of all codons including frequencies of stop codons. The length of coding sequences was determined by the program.