answer: 2) sequence of building blocks of a protein found in a cell.
Just random FYI:
- it is a mutation, that is generally not looked upon as being severe or detrimental to the person
-by changing the base by either adding or deleting from a protein strand will cause the protein to be useless
-frameshift mutation deals with DNA sequence being shifted. For example: a DNA strand looks like a ladder. If one of the rungs on the ladders gets skipped and the next ladder rung gets the code that the previous rung should have gotten, then that is what a frameshift mutation is. Hopefully that makes sense. It's easier to explain if there was a picture.
there are other types of mutation but I won't get into them.
Hopefully this helped and good luck.