Which of the Following Statements About CRISPR Are Accurate? Select

Multiple Choice

Which of the following statements about CRISPR are accurate? Select all that apply.

A) CRISPR was first discovered in single-celled eukaryotes.
B) Where naturally found in cells,CRISPR acts as a form of immune defense against viruses.
C) CRISPR utilizes an endonuclease enzyme called Cas9.
D) CRISPR can only be used by researchers to target a specific sequence of nucleotides in single-celled prokaryotes and eukaryotes.
E) CRISPR requires a guide RNA molecule to identify the nucleotide sequence destined for editing.