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...de-escalation may sometimes work better than an evolutionary arms race. Video 1 An introduction to the acquisition and spread of antibiotic resistance. By the end of this week, you should be able to: explain how genetic mutations can give rise to antibiotic resistance that can be inherited describe the horizontal gene transfer mechanisms that allow antibiotic resistance...

...FAQs...Week 1: Why does science need numbers?: 1.1 Water, water everywhere - NARRATOR 1 Bottled water is ubiquitous in our daily lives. Every year in the UK, we each consume some 70 litres of purchased bottled water, whether it's fizzy, mineral, or just purified tap water under a different name. The market for bottled water in the UK alone has grown to over 2 billion...

...FAQs). If it has, you should at least scan the existing messages to see if your points have been addressed. Don’t feel you have to post immediately. Take your time to see what is being discussed and get a feel for the group you’re joining. This very sensible behaviour has the unfortunate name of lurking but is quite acceptable online. If you want to post, many...