Biomolecule? In DNA see variant with added oxygen (9)
I believe the answer is:
adenosine
'variant with added oxygen' is the definition.
The definition and answer can be both substances as well as being singular nouns.
Maybe there's an association between them I don't understand?
'biomolecule? in dna' is the wordplay.
I cannot quite understand how this works, but
'in' is present in the answer.
This explanation may well be incorrect...
'see' acts as a link.
Can you help me to learn more?
(Other definitions for adenosine that I've seen before include "Sugar molecule" , "Nucleoside" .)