What mechanism do most retroviruses, but not HIV, use to get their genome into the host cell nucleus?
A) They actively inject their genome into the nucleus through the nuclear pore complex. B) These viruses do not need to enter the nucleus to replicate. C) They attach their genome to importin proteins which carry them into the nucleus. D) They wait until the cell enters mitosis and the nuclear envelope breaks down. E) The genome is bound to viral proteins that contain nuclear localization signals that move the genome through the nuclear pore complex.