I'm not sure about rat genetics. I know the hoodeds are a recessive gene, and unless the fawn also carries that gene then they will likely be selfs. Here's a link that may help, but without knowing lineage you never know what you'll get.
Cause when push comes to shove you taste what you're made of
You might bend, till you break cause its all you can take
On your knees you look up decide you've had enough
You get mad you get strong wipe your hands shake it off
Then you Stand
It's hard to say, rats are generally allowed to breed indiscrimately so you never know with pet store ones what will pop out. All I can tell you is what I get from mine. My big male black and white hooded bred to a ruby eyed beige (fawn) generally produces a lot of black berkshires or self blacks with a tiny chest spot or strip (not really enough to be classed an english or irish). He throws a lot of albino's to bred to almost every other color female. I get a fair few hoodeds as well, some are quite nicely marked, some are very broken stripes.
It's hard to say, rats are generally allowed to breed indiscrimately so you never know with pet store ones what will pop out. All I can tell you is what I get from mine. My big male black and white hooded bred to a ruby eyed beige (fawn) generally produces a lot of black berkshires or self blacks with a tiny chest spot or strip (not really enough to be classed an english or irish). He throws a lot of albino's to bred to almost every other color female. I get a fair few hoodeds as well, some are quite nicely marked, some are very broken stripes.
I agree...I would hate to have to do a gant chart for rats talk about an eye chart.