That part of the analogy does persist. It is the feature. The gene drive doesn't just insert the change you want - it inserts the change, and the code to make

That part of the analogy does persist. It is the feature. The gene drive doesn't just insert the change you want - it inserts the change, and the code to make the change: Wild type mosquito DNA: ================= Desired change to DNA: =============XX== DNA encoding Cas9 and XX-Payload: =C9(XX)= Gene Drivered Mosquito (before activation) (change to compiler): ====C9(XX)============= Gene Drivered Mosquito (after activation) (change to login code): ====C9(XX)========XX=== ------------------------------ A normal mosquito mating with a XX mutant mosquito: Mother Gamete: ----------------- Father Gamete: -------------XX-- Mendelian fraction of children (and grandchildren) are either --, --/XX,, or XX/XX (if two chromosomal copies) A normal mosquito mating with a Gene Drivered mosquito: Mother Gamete: ----------------- Father Gamete: ---C9(XX)----XX-- All children: ====C9(XX)========XX=== (for all 'N' chromosomal copies)