In embryonic and tumor cells, this structure and a smaller subpart may contain coiled accessory bodies named for Cajal.
Unspliced mRNA are permitted to leave this structure by the HIV-encoded protein Rev. In embryonic and tumor cells, this structure and a smaller subpart may contain coiled accessory bodies named for Cajal. Its surface contains pores into which larger molecules can enter or exit with the help of the transport factors importin and exportin. This organelle is surrounded by an envelope that is in contact with the rough endoplasmic reticulum. For 10 points, name this organelle that is only found in eukaryotes, the so-called "control center" of the cell.
Unspliced mRNA are permitted to leave this structure by the HIV-encoded protein Rev.
cell nucleus [accept nuclear membrane/envelope before "organelle"; do not accept "nucleolus"]