DNA is present in all human cells, except the red blood cells, that is because <span>RBCs do not contain the organelle nucleus or any other DNA containing organelle.</span>
Answer:
Cobalt Co
Explanation:
Co and Zn can fully replace each other, except perhaps for small individual requirements that are met by minute metal concentrations supplied as contaminants.
D
Cos Dna contains deoxyribose, Rna ribose