Question
Biology Question on Applications of Biotechnology
In the extraction of genetic material (DNA), which enzyme is not used?
A
Ribonuclease
B
Cellulose
C
Protease
D
Both Protease and Ribonuclease
Answer
Cellulose
Explanation
Solution
The correct answer is option (B): Cellulose
Ribonuclease is used during DNA extraction to remove the contamination of RNA. Ribonuclease helps in the cleavage of RNA into smaller fragments thus confirming the purity of DNA. Protease on the other hand is used to remove protein contamination during DNA extraction. Protease cleaves the peptide bond in proteins. Cellulose is not directly involved during DNA extraction.