DNA and RNA are composed of nucleotides that are linked to one another in a chain by chemical bonds, called ester bonds, between the sugar base of one nucleotide and the phosphate group of the ...

ATP works by losing the endmost phosphate group when instructed to do so by an enzyme ... Walker first determined the amino acid sequence of this enzyme, and then elaborated its 3 dimensional ...

ATP works by losing the endmost phosphate group when instructed to do so by an enzyme ... Walker first determined the amino acid sequence of this enzyme, and then elaborated its 3 dimensional ...