The phosphodiester bonds of the polynucleotide backbone in DNA would be broken.
The phosphate of one nucleotide is covalently bound to the sugar of the next nucleotide in DNA molecule (or hydroxyl groups in phosphoric acid react with hydroxyl groups on 3' carbon atom of one sugar molecule (deoxyribose) and the 5' carbon atom of another sugar molecule (deoxyribose) to form two ester bonds).
Hydrolysis of phosphodiester bonds is catalyzed by the action of enzymes phosphodiesterases.
The statement which best explains the presence of carbon 14 in organisms is this: THE RADIOACTIVE ISOTOPE REACTS IN THE SAME WAY AS THE STABLE ISOTOPES IN THE CHEMICAL REACTIONS IN THE BODY.
The radio active carbon 14 that is found in living organism react in the same way that other carbon isotopes react and does not have any damaging effect on the body.
ACTUALLY the correct answer is Epipelagic and Mesopelagic in order to find more prey. I just took this question and i got it correct. youre welcome :)
