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Answer:

uses an RNA molecule to hydrogen bond to the DNA, and the Cas9 cuts the DNA shutting off that gene

Explanation:

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Cas9 is able to bind with the specific sequences of DNA by attaching to bacteria's RNA copy of the virus's DNA.

What do you mean by Cas9?

Cas9 may be defined as an important enzyme of the Crispr technology. It is the molecular scissor that can cut the two strands of DNA at a specific location.

Cas9 enzyme searches for a target sequence by binding to DNA. It also creates small pieces of RNA with a short sequence that attaches them to specific targets sequence of the cell's DNA.

Therefore, Cas9 is able to bind with the specific sequences of DNA by attaching to bacteria's RNA copy of the virus's DNA, and functions in this way.

To learn more about Cas9, refer to the link:

https://brainly.com/question/17065423