GUNILLA ELAM / SCIENCE PHOTO LIBRARY GUNILLA ELAM / SCIENCE PHOTO LIBRARY
CRISPR-Cas9 gene editing complex, molecular structure. The CRISPR-Cas9 protein is a nuclease used in genome engineering to cut DNA (deoxyribonucleic acid). It uses a guide RNA (ribonucleic acid) sequence to cut DNA at a complementary site. The Cas9 protein is shown in purple. The guide RNA is green, and the double-strand of the DNA is grey.
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