2R hypothesis
...that according to the 2R hypothesis, the genomes of modern vertebrates are the result of two rounds of genome duplication hundreds of millions of years ago?
...that according to the <b id="mwyA"><a href="./2R_hypothesis" id="mwyQ" rel="mw:WikiLink" title="2R hypothesis">2R hypothesis</a></b>, the <a href="./Genome" id="mwyg" rel="mw:WikiLink" title="Genome">genomes</a> of modern <a href="./Vertebrate" id="mwyw" rel="mw:WikiLink" title="Vertebrate">vertebrates</a> are the result of two rounds of <a href="./Polyploidy" id="mwzA" rel="mw:WikiLink" title="Polyploidy">genome duplication</a> hundreds of millions of years ago?