Dna makes a good molecule for storing imformation because

a. its bases can be joined together in any order, like the letters of the alphabet can be strung to form different words
b. each nucleotide withing a dna strand can give a cell different information, and there are many nucleotides in every cell
c. it can absorb uvltraviolet light, so dna can protect cells from the damaging effects of this form of radiation
d. it is a typr of nucleic acid, and most acids are an important part of information storage within cells

Out of the following choices, DNA makes a good molecule for storing information because each nucleotide withing a DNA strand can give a cell different information, and there are many nucleotides in every cell. This will make the correct answer B. 

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Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein