i didnt know if this was normal or not but ive been told she is snow corn and she didnt have these markings when i first got her about a year ago, but now she has bright orange/yellow markings down the sides of her body till about half way down
most corns will develop yellow as they mature, how much all depends on the individual and also the line they are from. Compare how much yellow is in Chrissy's snow above to this one of mine (of the same age): http://www.thecornsnake.co.uk/forum/topic.asp?TOPIC_ID=7324