Answer :
Proteomics can reveal the set of proteins present in a cell or a tissue type and genomics cannot. So the correct option is C.
What is Proteomics?
Proteomics is the study of proteomes on a large scale. A set of proteins produced in an organism or a system in a biological context is called a proteome.
The proteome is not defined according to the system. A Proteome can be from an organ, organism, species etc. Thus, it is not constant and is different from cell to cell. The Proteome also keeps changing over time.
The proteome is the reflection of the underlying transcriptome, to some extent. But, there are many factors that modulate the protein activity added to the gene's expression level.
Therefore the correct option is C.
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