Below you can find the These disease-causers have a nucleic acid in a protein shell but not even a single cell Jeopardy Words Answer. The answer to These disease-causers have a nucleic acid in a protein shell but not even a single cell has 7 letters. This clue belongs to the Life science category and is part of Jeopardy Word Level 2231. If you scroll near the bottom you will find other clues and answers part of level 2231