I'm quite fond of Watson's Molecular Biology of the Gene (not to be confused with Molecular Biology of the Cell). In the stats camp, Jaynes is fantastic, alas

I'm quite fond of Watson's Molecular Biology of the Gene (not to be confused with Molecular Biology of the Cell). In the stats camp, Jaynes is fantastic, alas a bit difficult. But the prerequisites are very modest. It's self-contained. Hoel, Port & Stone's volume is a great introduction to basic (w/o measure theory) probability.