What do you mean by responsible? Do you want to know the genetics behind it, what the surface markers do, or why they are metically important? I think I can help.
Not always because there could be birth defects, mutations, or other variables.
Climate change is the choice that answers your statement
The cytochrome oxidase test is used primarily for the identification of GRAM NEGATIVE ORGANISM.
The oxidase test is used to identify bacteria which synthesize cytochrome C oxidase enzyme, which is an enzyme of the bacterial electron transport chain.
