div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader043vdocumentsusreader043viewer20220205235750685a1a28ab0f07afc4fahtml5page1jpg target=_blank img data-url=2-aminoadenine-is-an-adenine-substituting-for-a-base-in-s-2l-cyanophage-dnahtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: 2-Aminoadenine is an adenine substituting for a base in S-2L cyanophage DNA loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsusreader043viewer20220205235750685a1a28ab0f07afc4fahtml5thumbnails1jpg width=140 height=200 adivp© 1977 Nature Publishing Grouppdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imagea href=https:reader043vdocumentsusreader043viewer20220205235750685a1a28ab0f07afc4fahtml5page2jpg target=_blank img data-url=2-aminoadenine-is-an-adenine-substituting-for-a-base-in-s-2l-cyanophage-dnahtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: 2-Aminoadenine is an adenine substituting for a base in S-2L cyanophage DNA loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsusreader043viewer20220205235750685a1a28ab0f07afc4fahtml5thumbnails2jpg width=140 height=200 adivp© 1977 Nature Publishing Grouppdiv