A Level Biology Revision "DNA Replication"

You can find all my A Level Biology videos fully indexed at https://www.freesciencelessons.co.uk/... In this video, we look at how DNA is replicated. I take you through the key stages of DNA replication, looking at the roles of DNA helicase and DNA polymerase. We then look at how mutations can change the DNA sequence. In the second part of the video, I look at the role of the enzyme DNA ligase, which is required for the Edexcel spec. This video is aimed at the UK A Level Biology specifications. Students studying International A Level Biology will need to check their specification. Image credits: DNA Animation https://commons.wikimedia.org/wiki/Fi... brian0918, Public domain, via Wikimedia Commons