I want to know the answer to the following question:
What two algorithms have compression ratios of up to 1200-fold?
All the background I'm provided with is that "Other algorithms in 2009 and 2013 (DNAZip and GenomeZip) have compression ratios of up to 1200-fold—allowing 6 billion basepair diploid human genomes to be stored in 2.5 megabytes (relative to a reference genome or averaged over many genomes).". Is that enough to answer the question?
Answer: yes