Polymerase Chain Reaction
Which of the following infection(s) can be diagnosed by the use of polymerase chain reaction?

HIV-1 and HIV-2 viruses
Mycobacterium tuberculosis
All of these
Hepatitis B virus

ANSWER DOWNLOAD EXAMIANS APP

Polymerase Chain Reaction
The efficiency of amplification in PCR in later cycles is reduced due to

reduction in substrate concentration
all of these
build up of PCR product which competes with primers for hybrid formation
insufficient enzyme and time to synthesize mass quantity of DNA

ANSWER DOWNLOAD EXAMIANS APP