Question

In CRISP/Cas9 genetic engineering, the guide RNA (gRNA)

A. deactivates the enzymatic activity of Cas9.
B. All of the answers are correct.
C. always recognizes the same target sequence in DNA
D. is made by joining crRNA with a linker ssRNA
E. binds to the target DNA

Answer 1

The correct answer will be option-E.

Step-by-step explanation:

The CRISPR-Cas9 system is a simple and most versatile genome-editing tool to edit the genome of an organism.

The system consists of two components: "Cas-9 enzyme" which act like molecular scissors to cut the DNA and "Guide RNA or gRNA" which guides the Cas-9 enzyme to the target DNA by binding to the target DNA.

The gRNA consists of 20 bases long RNA sequence which is complementary to the sequence of the target DNA. This binding ensures the right binding and cutting of the target DNA.

Thus, option-E is the correct answer.