MIT is offering free online courses on Biology with Video Lectures.
7.014 Introductory Biology
The MIT Biology Department core courses, 7.012, 7.013, and 7.014, all cover the same core material, which includes the fundamental principles of biochemistry, genetics, molecular biology
, and cell biology
. Biological function at the molecular level
is particularly emphasized and covers the structure and regulation of genes, as well as, the structure and synthesis of proteins, how these molecules are integrated into cells, and how these cells are integrated into multicellular systems and organisms
. In addition, each version of the subject has its own distinctive material. http://ocw.mit.edu