试题范例

C）pyrimidine ＋ deoxyribose d）purine ＋ ribose ＋ phosphate 6 ﹒ Anucleotideiscomposedof：a）glucose ＋ galactoseb）purine ＋ ribose.8 ﹒ Innucleosidesornucleotides，thelinkagebetweenthepyrimidinean。Nucleotidesarejoinedtogetherbetw：a）2 ’ OHof1stnucleotideand γ phosp ......