1 .
The process in which all living cells, spores and viruses are completely destroyed from an object is called _____.
A .
Disinfection
B .
Pasteurization
C .
Sterilization
D .
Antisepsis
View Answer
- C . Sterilization
2 .
UHT sterilization involves high temperature exposure of objects for _____.
A .
1 – 3 seconds
B .
1 – 3 minutes
C .
1 – 3 hours
D .
10 – 30 hours
- View Answer
- A . 1 – 3 seconds
3 .
_______ is an antiseptic.
A .
Chlorine
B .
Copper Sulphate
C .
Ozone
D .
70% ethanol
- View Answer
- D . 70% ethanol
4 .
The best form of DNA to transform E. coli is ______.
A .
Linear
B .
Covalently closed
C .
Nicked circles
D .
Nicked linear
- View Answer
- B . Covalently closed
5 .
_____ RNA polymerase has a single subunit.
A .
coli
B .
Bacillus subtilis
C .
T7
D .
λ phage
- View Answer
- C . T7