In the ONPG and MUG test for fecal coliforms, a sample that is positive for E. coli will be
A. positive for ONPG; fluorescent in UV light.
B. negative for ONPG; fluorescent in UV light.
C. positive for ONPG; non-fluorescent in UV light.
D. negative for ONPG; non-fluorescent in UV light.
Answer:A
In the ONPG and MUG test for fecal coliforms, a sample that is positive for E. coli will be
A. positive for ONPG; fluorescent in UV light. B. negative for ONPG; fluorescent in UV light. C. positive for ONPG; non-fluorescent in UV light. D. negative for ONPG; non-fluorescent in UV light.