
Overview of transcription - Khan Academy
Transcription is the first step in gene expression, in which information from a gene is used to construct a functional product such as a protein. The goal of transcription is to make a RNA copy of a gene's …
Stages of transcription: initiation, elongation & termination (article ...
An in-depth looks at how transcription works. Initiation (promoters), elongation, and termination.
Transcription and mRNA processing (article) | Khan Academy
During transcription, a gene's nucleotide sequence (DNA) is copied to form messenger RNA (mRNA), which serves as a temporary blueprint. In eukaryotes, this occurs in the nucleus.
Regulation of transcription (video) | Khan Academy
Now a few notes about the differences between prokaryotes and eukaryotes when it comes to transcriptional regulation. In prokaryotes, the regulation of transcription is really needed for the cell to …
Transcription and mRNA processing - Khan Academy
Transcription is when we take the information encoded in the gene in DNA and encode essentially that same information in mRNA. So transcription we are going from DNA to messenger RNA, and we're …
Les étapes de la transcription (leçon) | Khan Academy
La transcription est une étape essentielle de l'exploitation des informations génétiques de notre ADN pour fabriquer des protéines. Les protéines sont les molécules clés qui structurent les cellules et les …
Eukaryotic pre-mRNA processing | RNA splicing (article) - Khan Academy
The molecule that's directly made by transcription in one of your (eukaryotic) cells is called a pre-mRNA, reflecting that it needs to go through a few more steps to become an actual messenger RNA (mRNA).
转录概述 (文章) | 转录和RNA加工 | 可汗学院 - Khan Academy
Transcription: DNA-directed RNA synthesis. In Life: the science of biology (7th ed., pp. 237-239). Sunderland, MA: Sinauer Associates. Raven, P. H., Johnson, G. B., Mason, K. A., Losos, J. B., and …
Aperçu de la transcription (leçon) | Khan Academy
La transcription d'un gène se fait en trois étapes : l'initiation, l'élongation et la terminaison. Ici, on va rapidement étudier comment ces étapes se déroulent chez les bactéries.
Resumen de la transcripción (artículo) | Khan Academy
Transcription is the DNA-directed synthesis of RNA: A closer look (La transcricpción es la síntesis de ARN dirigida por el ADN: una revisión más profunda). En