BBC News story – how studying DNA from ancient dog bones at archaeological sites has given clues to how long ago dogs became domesticated.
Report on xenotransplantation – includes case studies of patients trialling the technology, potential risks and a discussion of animal welfare
BBC News in depth report on gene editing using CRISPR-Cas9. This technique is not on the spec (yet!) but this provides a useful introduction to emerging technology.
Photo and information from Science Museum.
From BBC, new techniques could allow the DNA of identical twins to be distinguished.
Links, information, news and educational resources