tell me why and gel plate
Still More Tell Me Why was the third in a series of Tell Me Why books published in the 1970s. I loved this book and read it endlessly as a child. It initiated the interest in science and human disease I had from a very early age. The square plastic plate contains an old Gel. This is one of the most common experiments we perform in the lab. The blue colour stains proteins in particular and the banding patterns tell us whether the protein antigens (the vaccines) that we are interested in are actually there, what size they are and how pure they are.