精选优质文档-倾情为你奉上Chapter 3 Nucleic Acid1. Physical and chemical structure of DNAl Double-stranded helixl Major groove and minor groovel Base pairingl The two strands are antiparallell G+C content (percent G+C)l Satellite DNASatellite DNA consists of highly repetitive DNA and is so called because repetitions of a short DNA sequence tend to produce a different frequency of the nucleotides adenine, cytosine, guanine and thymine, and thus have a different density from bulk
