As a result of insertion, <span>frameshift mutations can be caused, and this generally results in a nonfunctional protein.</span>
Each codon codes for an amino acid.
Together, they code a protein but that’s not part of the question.
Amino acid is your answer.
A reverse reaction is the chemical reaction moving both forward and backwards.
An example of this is Ammonium chloride ⇌ ammonia + hydrogen chloride
This is a symbol for reverse reaction ⇌
I'm sure it's Quarts, the answer would be D