Diesease causing mutation occurs in the dna. Scientist repaired a diesease causing sequence in the dna in a human embryo. Using crispr they edited the defective gene sequence. The method can be used to prevent transmission of the disease to future generations. Crispr could repair up to 10,000 genetic disorders passed down the generations. The method is a safe way to repair genetic mutations. Crispr uses a protein called cast 9 to cut a sequence of sugars from a dna strand. A guide rna up to 105 sugars is used to identify the bad dna section.
