Certain proteins help copy nucleic acids by fashioning complementary strands that carry matching nucleotides.Proteins携带配对的nucleotide参与了nucleicacids的 精确配对复制是明确的.Deoxyribose A pentose ( five - carbon ) sugar that is a comp...
The causeway to the island is only accessible at low tide.通往该岛的堤道只有在枯潮时才能通行。A lot of rubbish was washed up by the high tide.涨潮把许多垃圾冲上了岸。...an ever increasing tide of crime...不断高涨的犯罪浪潮The research object is Gonyaulax poly...