RNA 翻译 蛋白质 RNA充当信使的证据 DNA与RNA的比较 生物体内有三种RNA •mRNA（messageRNA）：编码特定蛋白序列；•tRNA（transferRNA）：特异性地解读mRNA中的遗传信息，将其转化为相应的氨基酸；•rRNA(ribosomalRNA）：直接参与核糖体中蛋白质的合成。Contents ●基本概念●转录起始：RNA聚合酶、启动子●转录的...
以DNA为模板,在RNA聚合酶作用下合成RNA的过程 promoter启动子(promoter): 与基因转录启动有关的特定保守序列;启动子本身不被转录 transcription factor反式作用因子 又称调节蛋白(DNA结合蛋白DBP,或转录因子TF) 基本转录因子:是RNA聚合酶结合启动子所必需的一组蛋白因子,决定三种RNA(mRNA、tRNA及rRNA)转录的类别。 特...
2. (genetics) the organic process whereby the DNA sequence in a gene is copied into mRNA; the process whereby a base sequence of messenger RNA is synthesized on a template of complementary DNA 3. a sound or television recording (e.g., from a broadcast to a tape recording) ...
by hydrophobic base-stacking, constitutes the DNA secondary structure; this allows the structure to be easily opened during either DNA replication or transcription so that polymerizing enzymes can have access to read the sequence of each strand's DNA as a template for making more DNA or RNA. In...
不管双链DNA启动子序列后面跟着的是双链or 单链DNA序列,双链or单链RNA序列,chemeric DNA-RNA,T7 RNAploymerase 都可以启动转录合成RNA序列,这可以看作是T7 RNApolymerase 依赖于启动子的聚合酶活性(promoter dependent polymerase)。说白了,只要存在启动子DAN双链序列,不管后面接的是什么,T7 RNAploymerase都...
百度试题 结果1 题目以DNA为模板合成RNA的过程称为 A. DNA replication B. transcription C. reverse transcription D. translation E. RNA replication 相关知识点: 试题来源: 解析 B 反馈 收藏
DNA Transcription to mRNA - DNA is a double-stranded structure found in eukaryotes (multi-cell organisms) whereas RNA (Ribonucleic acid) are single-stranded structure found in prokaryotes (single-cell organisms like bacteria). During transcription, the D
1、 Transcription The synthesis of RNA molecules using DNA strands as the templates so that the genetic information can be transferred from DNA to RNA.TranscriptionBoth processes use DNA as the template.Phosphodiester bonds are formed in both cases. Both synthesis directions are from 5 to 3. ...
T7 RNAploymerase同时有依赖于DNA模板和RNA模板的RNA聚合酶活性,可以高度特异性地识别保守启动子序列,但其聚合酶活性具有非常大的弹性尺度范围。不管双链DNA启动子序列后面跟着的是双链or 单链DNA序列,双链or单链RNA序列,chemeric DNA-RNA,T7 RNAploymerase ...
Learn about mRNA transcription. Discover where and how DNA is transcribed into RNA in prokaryotes and eukaryotes, and examine the final product of...