There are thousands of genes in nature  Which genes are the most common and abundant  After successfully decoding a large number of genomes, a research institute found the answer: transposons, known as selfish DNA  The abundance and breadth of transposon genes indicate that they play a vital role in evolution and the maintenance of biodiversity Biology textbooks generally believe that the enzyme that can fix carbon dioxide in photosynthesis is the most abundant enzyme on earth, and some scholars have speculated that the genes that can encode this enzyme should also be the most abundant
But the study found that transposons, known as junk DNA, instead dominate the known genetic world
Different enzymes require different genes to encode.