What's the difference between endogenetic and exogenetic?

Endogenetic

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Definition:

• (a.) Endogenous.

Example Sentences:

• (1) It is a kind of endogenetic protein rich in cysteine residue and divalent metal ions.
• (2) From these findings, it appears that endogenetic CMV may have been reactivated in the present case.

Exogenetic

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Definition:

• (a.) Arising or growing from without; exogenous.

Example Sentences:

• (1) Until we are reassured to the contrary, we must assume that exogenetic intoxication can produce changes detectable only as behavioral changes.