Read this: Genome composition is used to describe the make up of contents of a haploid genome, which should include genome size, proportions of non-repetitive DNA and repetitive DNA in details. By comparing the genome compositions between genomes, scientists can better understand the evolutionary history of a given genome.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): What is the history of a genome used for?
unanswerable