Testing for, testing of

Does a laboratory do “testing for” or “testing of” a disorder? E.g., testing for/of a mutation?

Answer

It depends on whether they’re testing to determine if something exists, which would be: “…testing for…” or if they’re actually testing the condition itself: “…testing of…”.

It’s (sort of) like the difference between “Looking for my cat” and “Looking at my cat”.

Attribution
Source : Link , Question Author : Flora , Answer Author : Dave M

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