Spreadsheet only approach:
For your second column, use the FIND function to identify cells with "-" in them. Set a conditional format using the formula to highlight the found cell. For example, for a (((-...))) in cell B2, set conditional format using the formula =FIND("-",B2). The format can be copied down the column. Alternatively, use the formula in a helper column to return a flag value or the contents of the cell(s): In cell F2, say, enter =IFERROR(IF(FIND("-",b2),b2),""), which returns the cell contents if they include "-", and returns an empty string otherwise.
For third column, along the same lines you can use the following formula =NOT(EXACT(c2,LOWER(c2)) in a conditional format or the formula =IF(NOT(EXACT(c2,LOWER(c2)),c2,"") in a helper column. Note that the latter formula only tests for mixed case and will fail on "aagcu".