Crossword clues for the word: JUNKDNA The word JUNKDNA has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for JUNKDNA Showing 1 to 5 of 5 results Clue(s) About 98% of the human genome Genetic material that appears to have no function Genetic material that doesn't code for protein* Genetic material with no known function Worthless inheritance?