I've asked about this stuff so many times I'm getting annoyed at myself. But I'd like to ask this to clear up the murky water in my head.

My understanding of all this is that if you start w/ 2 parents, they are considered the "Pth" generation.
Any offspring from the parents, or Pth generation are F1's.
Any offspring from siblings from the F1's bred to each other are F2's.
Any offspring from siblings from the F2's bred to each other are F3's.
So on and so forth.

Is this true as I understand it?

If it is, is my understanding of the following true:

If a person was to breed an F2 to an F3, these parents (the F2 and F3) would NOW be considered the Pth generation of a new line?

In addition, if a person was to breed an F4 of one line to an F4 of another line, that these parent animals would also be considered the Pth generation of a new line? Say for instance an F4 Gee line hypo bred to an F4 Ihle line hypo would mean the resulting babies are F1's, right? Not F5's, right?

And taking this a step further, if a breeding was done from an F4 animal BACK to an original parent (the Pth generation of the line) would the resulting offspring would all be F1's?

So, how far off am I here?

Thanks! jb
-----
Jonathan Brady
"Sarcasm is angers ugly cousin" -Dr. Buddy Rydell (Jack Nicholson) in "Anger Management".

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