ALL parts of the Bible are important. It's generally held that God considered the first five books--certainly including Genesis--to be SO important as to warrant dictating them to Moses one character at a time. Every word is there for a reason, many of which we can't understand.
MM
I've never heard the one character at time comment. Is it based on biblical evidence or popular belief. Not saying it isn't true - just wondering.
About every word being there for a reason - there are several different versions of the bible and they all differ significantly in wording. Some even leave out portions of the book of Mark. The catholic bible includes some books that the protestant bible doesn't.