An introduction to DNA
I decided to take the biology stuff ‘from the top‘ and this is as far as I’ll go today:
…This is pure gold. I’m currenty at chapter 9 in Russell’s Genetics…, which is about ‘The Organization of DNA in Chromosomes’, after having read the chapter about ‘The Structure of Genetic Material’ (‘the chemical composition of DNA and RNA’). So I can tell you that Sal’s treatment is, as he also mentions himself again and again, grossly simplified – some of this is very complex stuff. However ‘the basics’ needn’t be that hard to get, and Salman Khan does his best to make this stuff approachable, even to people with very little knowledge of biology.
Today’s been a great day where I feel like I’ve learned a lot. If you’ve liked (some of..?) the videos I’ve posted from Khan Academy so far, then you really should go make a user profile (one can log in via google or facebook) and start exploring more systematically. There’s a lot of good stuff here.