Specificity of the ricin A chain-ribosome interaction was demonstrated by competition experiments using either ricin A chain or gelonin, another ribosome-inactivating protein having the identical mechanism of ribosome inactivation (26) in a broad spectrum of species including rat and rabbit (12, 26).
Report Abuse. I would say that bread stays fresh in the fridge for about a week. If you are unable to eat alot of bread at one time,then it is best to store your bread in the freezer,because the freezer keeps your bread for a longer period of time than the fridge does! ;-). Source(s): Nurse and Mother. Winnie Â· 8 years ago.
Bread on the counter, properly stored, should be good for 3-5 days, which extends to 7-14 days in the refrigerator. 1  It's also fine to refrigerate or freeze bread, especially soft sandwich bread, to extend the life. 2  If you keep bread on the counter, never keep it in a plastic bag.