Question: You have discovered a new archaeon and sequenced its genome. Despite extremely thorough sequencing and extensive computational assembly efforts, your genome assemblies always end up with two different pieces of DNA and you cannot get them to assemble together: contig A is 4,802,478 bp long (46 %G+C), and contig B is 18,283 bp (67 %G+C). Propose an explanation for why you cannot join these two pieces of DNA together.