Slippage during DNA replication can lead to expanding sections of repeating nucleotides. New expansions can occur. Watch this animation to see how this problem occurs. With expansions disease like Rett Syndrome can get worse.
Channels: Scientific Animations Genetics Medical
Tags: Nucleotide nucleotideRepeat replication RettSyndrom
Uploaded by: benchwork ( Send Message ) on 05-08-2007.
Duration: 1m 7s