seamless loop. abstract gene connections with dna sequencing atgc. nucleic acid sequence. genetic research. 3d illustration. - 螺旋模型 個影片檔及 b 捲影像00:10
dna double helix, unwinding then unzipping into its two complementary strands. - 螺旋模型 個影片檔及 b 捲影像00:42翻譯
