In an age in which liberal churches and synagogues see membership declining and fundamentalist ones grow as they fan hostility to science, it is refreshing to find an artist who uses historical genetics as the basis for a new concept of holiness. Chris Twomey combines her skills as painter and photographer to reinvent and democratize the Madonna ideal by combining joyous photographs of very particular mothers with their naked babies on one hand with graphic evocations of cell structure and mapped intercontinental migrations of mitochondrial DNA on the other.