Question

Amylase is now frequently prepared with lactose or other sugars as extenders. Determine which experiments would give erroneous results if contaminated amylase were used.

Answer 1

That's odd. Well, contaminated amylase would give you false positives; any experiment that requires it would potentially give erroneous results then? Without much more to go off of, I guess you could definitely say 2 and 4, though apart from that I guess you can't really be too sure.