Mutation occurs in the tissues that receives radiations because the production of proteins by ribosomes increases. In normal conditions, ribosomes produces normal amount of protein but in this case proteins production increases by the tissue due to exposure to radioactive amino acid that causes mutation in the ribosomes and it increases its protein production.
Adenosine triphosphate (ATP). This nucleotide is very essential in the cell. It is the main source of energy in a cell and is utilized in many biological processes by the cell.