Messenger RNA (mRNA) and transfer RNA (tRNA) are important nucleic acids involved in the process of protein synthesis. (a) Describe how a molecule of mRNA is made during transcription. 请描述在转录过程中mRNA分子是如何合成的。 参考答案 Transcription is the copying of a DNA strand into an RNA...
Introduction to DNA Replication - A-level Biology - OCR, AQA, Edexcel 03:20 Introduction to Enzymes - A-level Biology - OCR, AQA, Edexcel 15:56 Introduction to Prokaryotic Cells - A-level Biology - OCR, AQA, Edexcel 09:21 Introduction to Protein Synthesis - A-level Biology - OCR, AQA...
Session5:The mitotic cell cycle 有丝分裂细胞周期 Session6:Nucleic acids and protein synthesis 核酸和蛋白质合成 Session7:Transport in plants 植物的转运 Session8:Transport in mammals 哺乳动物的转运 Part3: Practical Skills in Biology Session9:Gas exchange and smoking 气体交换和吸烟 Session10:Infectious...
A-Level Biology(AS) A- Level 生物(AS) 01 课程介绍 A- Level生物课程是在GCSE生物知识的基础上,更深入、系统地了解与生物有关的概念知识,如生物进化论、细胞学说、遗传学等。其中大部分内容都与我们的生活现象息息相关,像动植物的光合作用和呼吸作用,这些知识极大地吸引了对生命科学感兴趣的学生。同时生物学...
Session6:Nucleic acids and protein synthesis 核酸和蛋白质合成 Session7:Transport in plants 植物的转运 Session8:Transport in mammals 哺乳动物的转运 Part3: Practical Skills in Biology Session9:Gas exchange and smoking 气体交换和吸烟 Session10:Infectious disease 传染病 ...
2 Role of DNA in protein synthesis Ⅱ Samples of A-LEVEL biology examination for analyzing 1 describe the structure of RNA and DNA and explain the importance of base pairing and the different hydrogen bonding between bases; the structure of DNA and RNA ...
3 A 2.2 × 10 nm 2 B 2.2 × 10 nm C 2.2 × 101 nm 0 D 2.2 × 10 nm 3 Which row correctly shows a feature of a cell structure? site of protein makes lysosomes synthesis A smooth endoplasmic rough endoplasmic reticulum reticulum B ribosomes Golgi body C rough endoplasmic ribosomes ...
Structural studies of tyrocidine synthetase using site-selective crosslinking probes to link condensation domains with carrier protein substrates define key interactions and molecular mechanisms of non-ribosomal protein synthesis. Graham W. Heberlig ...
Using symmetry to drive new protein assemblies Recent improvements in de novo protein design are likely to support a broad range of applications, but larger complexes will be easier to create if a building block approach is adopted. Now protein filaments with tunable geometry can be made using as...
In early years, Chinese scientists were the first to artificially synthesize the functional protein (bovine insulin) and ribonucleic acid (yeast alanine tRNA). In recent years, they have been engaged in chromosomal synthesis and chromosomal engineering, genome editing, biological chassis construction, ...