In the CORE: Mesh Modeling Fundamentals Course Files, there is a human_basemesh.blend file, with a male basemesh. You can examine that one.
There is also an old, 11 part Course on CGCookie Classics, starting with: https://www.youtube.com/watch?v=g8qbY70F8po&list=PL3GeP3YLZn5hCYXZp2yACPZWn-wQik6fD&index=149
that goes through the whole process of creating a female (basemesh).
