- 1、本文档共47页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
生物学导论biology7
Types of RNA produced by transcription mRNA is a mature, straight-chain copy of a gene that describe the exact sequence on which amino acids should be bonded together to form a polypeptide tRNA is responsible for picking up particular amino acids and transferring them to the ribosome for assembly into the polypeptide Types of RNA produced by transcription rRNA is a highly coiled molecule and is used, along with protein molecules, in the manufacture of all ribosomes. The cytoplasmic (细胞质的) organelles where tRNA, mRNA, and rRNA come together to help in the synthesis of protein Eukaryotic transcription A eukaryotic gene begins with a promoter region and an initiation code and ends with a termination code and region RNA polymerase synthesizes a strand of pre-mRNA (mRNA 前体) that initially include copies of both exons (外显子, meaningful) and introns (内含子, meaningless) Eukaryotic transcription 7.5 Translation or protein synthesis The information is used to assemble amino acids into proteins by a process called translation (转译) The word translation refers to the fact that nucleic acid language is being changed to protein language. The protein language has 20 words in the form of 20 common amino acids (table 7.1) Translation or protein synthesis The construction site of the protein molecules is on the ribosome, a cellular organelle that serves as the meeting place for mRNA and the tRNAs that carry amino acid building blocks Ribosomes can be found free in cytoplasm (细胞质) or attached to the ER (endoplasmic reticulum) Protein synthesis Protein synthesis – 5 steps mRNA, tRNA, and rRNA are manufactured mRNA enters the cytoplasm and attached to rRNA-containing ribosomes tRNA molecules carry various amino acids to the ribosome and specific positions The amino acids are combined by dehydration synthesis to form a protein When complete, the mRNA and tRNA are released from the ribosome to be reused to synthesize other protein molecules 7.6 Alternations of DNA Mutation Any change in DNA
您可能关注的文档
- 生物信息学-第三章.ppt
- 生产流程与库存管理.ppt
- 生物信息学_基因表达分析.pptx
- 生物催化结课论文.doc
- 生活区标准.ppt
- 生物修复-第七章.ppt
- 理综卷·2015届浙江省温州市高三下学期第三次适应性测试(2015.05).doc
- 生物传感器的主要原理及应用(英文).ppt
- 生物化学2004期末考试题目.doc
- 生物化学-第八章 核苷酸代谢.ppt
- 人教版(2019)选择性必修第一册Unit2 Looking into the Future Reading and Thinking 名师教学设计.docx
- Units 2-4 非谓语动词习题 教学设计-2023-2024学年高中英语牛津译林版(2020)必修第三册.docx
- Unit 7 Section A grammar focus~3c教学设计-2023-2024学年人教版英语七年级上册.docx
- Unit5Section5WritingaReviewofTheMillionPoundBankNote(教学设计)轻松课堂2023-2024学年新教材高中英语必修第三册(人教版).docx
- 人教版数学九年级下册28.1.4 用计算器求锐角三角函数值 教案.docx
- 第7课《不甘屈辱 奋勇抗争》(教学设计)-部编版道德与法治五年级下册.docx
- 商务星球版初中地理七年级上册1.4地球的公转教案.docx
- Unit2WildlifeProtectionDiscoveringusefulstructures教学设计-2023-2024学年高中英语人教版(2019)必修第二册.docx
- 第四章第1节第四部分剖析编制计算机程序解决问题的过程说课教学设计粤教版高中信息技术必修一.docx
- 人教鄂教版四年级科学下册第7课《蚕的生长变化》第二课时教案.docx
最近下载
- 小学:音乐人音版三年级下册第一单元《爱祖国》大单元设计.docx
- 华润饮料(1991.HK)新股纵览:包装纯净饮用水龙头企业,锐意进取止于至善.pdf
- 办文办会办事流程图.doc
- 常山北明:拟处置资产涉及的闲置报废机器设备资产评估报告.docx VIP
- 昭和电工正式量产 VGCF-等级纳米碳管-VGCF-项目介绍.docx
- 表面改性剂祥解.ppt
- 教学课件:第2讲《办好中国的事情关键在党》.pptx VIP
- (必威体育精装版)24年秋统编版四年级语文上册习作:我的家人【教案及反思】.docx
- 安川骏马系列.pdf
- 初中地理综合实践作业设计方案-七年级(七)绘制学校平面图-人教版七年级上册.docx VIP
文档评论(0)