Changes

A genome is all the hereditary information held by an [[organism]], as expressed in its genetic information.   

A genome is all the hereditary information held by an [[organism]], this includes both expressed and non-expressed [[genetic information]]. It is usually stored in [[DNA]] though the [[Retrovirus]] stores it in [[RNA]].   

[[Eukaryotic cell|Eukaryote]]s (including humans) actually have two types of genomic material:

[[Eukaryotic cell|Eukaryote]]s (including humans) actually have two types of genomic material: