Which of these is found in amino acids?Group of answer choices–C=OR–NH2R–PO42R–OHR–COH

Amino acids are found attached to which of the following molecules?Group of answer choicesDNAmRNAtRNArRNAHelicase

Basic amino acid contains which of the following in its side chain?Group of answer choicesaldehydealkanecarboxylic acidamine

All nucleic acids must contain which of the following?Group of answer choicesribosedeoxyribosephosphate groupamino acids

How many amino acids are there?Group of answer choices4201,00010026

Which of the following amino acids has a negatively charged side chain at physiological pH?Group of answer choicesglutamineasparaginelysinemethionineglutamic acidarginine