生物學(xué)基礎(chǔ)-資料下載頁
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【正文】 C or G or T) aNy 不確定 核苷酸代 碼 表 (IUPACIUB STANDARD BASE CODES) Last modified: 25Aug2023, 脫氧核糖核酸 (DNA)DNA是遺傳物質(zhì) Deoxyribonucleic acid (better known as DNA) is the physical carrier of inheritance for 99% of living anisms. 1953年， Watson和 Crick闡明了 DNA的雙螺旋結(jié)構(gòu) ?，F(xiàn)代生物技術(shù)發(fā)展史上的重要事件 ? polynucleotide chain? 3’,5’phosphodiester bondii). Structure of the DNA double helixN糖苷鍵3‘,5’磷酸二酯鍵Structure of a segment of a DNA double helix.AT base pairGC base pairChargaff’s rule: The content of A equals the content of T, and the content of G equals the content of C in doublestranded DNA from any speciesChargaff’s ruleModel of doublestranded DNA showing three base pairs3’carbon5’carbon 核糖核酸 (RNA)RNA has ribose sugar instead of deoxyribose sugar. The base uracil (U) replaces thymine (T) in RNA. Most RNA is single stranded, although tRNA will form a cloverleaf structure due to plementary base pairing.RNA (Ribonucleic Acid)The major bases found in DNA and RNA DNA RNA Adenine Adenine Cytosine Cytosine Guanine Guanine Thymine Uracil (U)uraciladenine base pairthymineadenine base pairThere are three types of RNA:l Messenger RNA (mRNA) is the blueprint for construction of a protein. l Ribosomal RNA (rRNA) is the construction site where the protein is made. l Transfer RNA (tRNA) is the truck delivering the proper amino acid to the site at the right time.謝謝觀看 /歡迎下載BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAIT
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