Biology of escalating force / chromosomes / Marie Stopes.

In the first item on the programme, Geoff Watts discusses recent research into the biology of escalating force with Sukhi Shergill and Christopher Frith. In the second item, Watts discusses the sequencing and packaging of chromosomes in our genetic material with Wendy Bickmore. The third item looks at how offal can be converted into crude oil. The final item is about the influence Marie Stopes may have had on Captain Scott's research into the ancient forests of the North and South poles.