colorful letters of a, c, g and t fully filled the whole black screen with a section changed to the glowing white alphabet crispr

genome crispr crispr-cas9 editing genetic engineering dna sequence acgt modification prokaryotic fragment prokaryote bacteria archaea rna repetitive viral gene science technology medical evolution health chromosome cell research cloning therapeutics medicine molecular biology antiviral defense system nuclease grna guide biotechnology mutation therapy scissors repair discovery immune molecule scientific structure genetics