Which characteristics make biomolecule a BIOMARKER ?

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Adam B Shapiro

The only necessary characteristic is that the presence or quantity of the molecule is correlated with the physiological state or disease in question.

https://en.wikipedia.org/wiki/Biomarker

Rzger A. Abdula

Dear Majid Ullah,

The molecular residues, when characterized as specific molecules (Biomarkers) by their structures and isotopic content, may give precise indications of their biosynthetic origins in particular organisms, as well as the organisms experienced.