The genetic code & codon table (article) | Khan Academy
Decoding messages is also a key step in gene expression, in which information from a gene is read out to build a protein. In this article, we'll take a closer look at the genetic code, which allows DNA and …
Transcription: an overview of DNA transcription (article) | Khan Academy
In transcription, the DNA sequence of a gene is transcribed (copied out) to make an RNA molecule.
Stages of transcription: initiation, elongation & termination (article ...
The RNA transcript is nearly identical to the non-template, or coding, strand of DNA. However, RNA strands have the base uracil (U) in place of thymine (T), as well as a slightly different sugar in the …
Intro to gene expression (central dogma) - Khan Academy
The primary transcript carries the same sequence information as the non-transcribed strand of DNA, sometimes called the coding strand. However, the primary transcript and the coding strand of DNA …
Types of mutations and their notations (article) | Khan Academy
This standardized system of mutation annotation helps in identifying and discussing genetic changes in a clear and consistent manner, making it easier to communicate important information about how …
Nucleic acids (article) | Khan Academy
DNA bears the hereditary information that’s passed on from parents to children, providing instructions for how (and when) to make the many proteins needed to build and maintain functioning cells, tissues, …
Transcription and mRNA processing (article) | Khan Academy
DNA stores genetic information in the sequence of its nitrogenous bases. The specific order of these bases forms instructions, or "genes," that direct the production of proteins and regulate various …
DNA transcription and mRNA processing (video) | Khan Academy
So transcription we are going from DNA to messenger RNA, and we're gonna, in this video, focus on genes that code for proteins. So this first step is the transcription, the DNA to messenger RNA, and …
Gene expression and regulation | AP®︎/College Biology | Khan …
Explore DNA and chromatin modifications, transcriptional regulation, and the influence of transcription factors. Examine the roles of non-coding RNAs and operons in controlling gene activity.
DNA replication and RNA transcription and translation
Replication creates identical DNA strands, while transcription converts DNA into messenger RNA (mRNA). Translation then decodes mRNA into amino acids, forming proteins essential for life functions.