the arrangement of repetitive and nonrepetitive dna sequences in the soybean genome was ascertained by a comparison of the reassociation kinetics of short ( 250 nucleotides ) and long ( 2700 nucleotides ) dna fragments , the size distribution of s-1 nuclease resistant repetitive duplexes , and a direct assay of the spectrum of dna sequences present on long dna fragments enriched in repetitive dna .
C0000702
a
C0012854
dna