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Central dogma (DNA to RNA to protein)

This course is a part of AP®︎ Biology, a 38-course Topic series from Khan Academy.

How does a gene in your DNA provide instructions for building a protein? In gene expression, a DNA sequence is first copied to make an RNA molecule, which is then "decoded" to build a protein. Learn more about this remarkable process, shared by all living things.

This course contains 3 segments:

Central dogma and the genetic code

Get an overview of the "central dogma" of molecular biology! Learn how a gene's DNA is copied into RNA (transcription), which is then "decoded" to specify the amino acid sequence of a protein (translation).

Transcription

Transcription is the first step in gene expression. It involves copying, or transcribing, the DNA sequence of a gene into the similar "alphabet" of RNA nucleotides. Learn more about this crucial cellular process.

Translation

In translation, the nucleotide sequence of an mRNA is "decoded" to specify the sequence of amino acids in a protein. Learn more about the steps of this process and the molecules that carry it out.

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Clinical Research Liaison/Clinical Research Coordinator, Center for Gene Therapy $58k

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Molecular Screening and Protein Expression $59k

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Khan Academy

Rating Not enough ratings
Length 3 segments
Starts On Demand (Start anytime)
Cost Free
From Khan Academy
Download Videos On all desktop and mobile devices
Language English
Subjects Science
Tags Science

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