转录 - 百度百科
转录( transcription)是指以DNA为模板，以ATP、UTP、GTP和CTP为原料，按照碱基互补原则，在 RNA聚合酶 的作用下合成RNA的过程，是基因c表达的第一步。 原核细胞只有一种RNA聚合酶；而真核细胞则有3种： RNA聚合酶I 、RNA聚合酶Ⅱ及RNA聚合酶Ⅲ。
DNA Transcription | Learn Science at Scitable - Nature
Learn more about the DNA transcription process, where DNA is converted to RNA, a more portable set of instructions for the cell. The genetic code is frequently referred to as a "blueprint"...
Transcription (biology) - Wikipedia
Transcription is the process of copying a segment of DNA into RNA. Some segments of DNA are transcribed into RNA molecules that can encode proteins, called messenger RNA (mRNA). Other segments of DNA are transcribed into RNA molecules called non-coding RNAs (ncRNAs).
转录 - 维基百科，自由的百科全书
转录 （英語： Transcription）是在 RNA聚合酶 的催化下， 遗传信息 由 DNA 复制到 RNA （尤其是 mRNA）的过程。 作为 蛋白质生物合成 的第一步，转录是合成 mRNA 以及 非編碼RNA （tRNA 、 rRNA 等）的途径。 真核生物 合成蛋白质的转录过程以特定的单链 DNA 片段作为模板， RNA聚合酶 作为 催化剂，合成 前mRNA，前mRNA经进一步加工后转为成熟mRNA。 转录时，DNA分子的双链打开（是否需要 DNA解旋酶 仍存在争议），在RNA聚合酶的作用下，游离 …
Transcription | Definition, Steps, & Biology | Britannica
2024年11月14日 · Genetic information flows from DNA into protein, the substance that gives an organism its form. This flow of information occurs through the sequential processes of transcription (DNA to RNA) and translation (RNA to protein). Transcription occurs when there is a need for a particular gene product at a specific time or in a specific tissue.
Biochemistry, Replication and Transcription - StatPearls - NCBI Bookshelf
2023年8月14日 · Transcription is the process where a specific segment of DNA is used as a template and copied into an RNA molecule. This synthesis is carried out by an enzyme known as RNA polymerase. The newly synthesized RNA molecule then exits the nucleus and enters the cytoplasm, where it is translated into protein.
Transcription (RNA Synthesis) - Definition, Diagram, Steps, …
2024年10月23日 · DNA transcription is the process of copying genetic information from DNA to RNA. It involves the synthesis of RNA molecules using a DNA template and is an essential step in gene expression and protein synthesis.
Translation: DNA to mRNA to Protein | Learn Science at Scitable
During transcription, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then...
From DNA to RNA - Molecular Biology of the Cell - NCBI Bookshelf
DNA transcription produces a single-stranded RNA molecule that is complementary to one strand of DNA. Transcription, however, differs from DNA replication in several crucial ways. Unlike a newly formed DNA strand, the RNA strand does not remain hydrogen-bonded to the DNA template strand.
transcription / DNA transcription | Learn Science at Scitable
Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). DNA safely and stably stores genetic material in the nuclei of...