I want to know the answer to the following question:
After the Human Genome Project, how many genes were encoded on the mitochondrial genome?
All the background I'm provided with is that "Subsequently, the sequencing in the Human Genome Project indicated that many of these transcripts were alternative variants of the same genes, and the total number of protein-coding genes was revised down to ~20,000 with 13 genes encoded on the mitochondrial genome.". Is that enough to answer the question?