Read this: The proportion of non-repetitive DNA is calculated by using the length of non-repetitive DNA divided by genome size. Protein-coding genes and RNA-coding genes are generally non-repetitive DNA. A bigger genome does not mean more genes, and the proportion of non-repetitive DNA decreases along with increasing genome size in higher eukaryotes.

What is the number of protein-coding genes divided by to get the proportion of non-repetitive DNA?
What is the answer? (If it cannot be answered, return "unanswerable")
unanswerable