Final answer:
DNA, rRNA, and proteins are all biopolymers synthesized by adding monomers one at a time; DNA and rRNA are composed of nucleotides, and proteins are made up of amino acids.
Step-by-step explanation:
In the context of biopolymers where monomers are added sequentially. all of the above, which includes DNA, rRNA, and protein.
Deoxyribonucleic acid (DNA) and ribonucleic acid (rRNA) are polymers, structured from a series of nucleotide monomers that join together one by one. Each nucleotide is composed of a phosphate group, a sugar (either ribose or deoxyribose), and a nitrogenous base. DNA is the carrier of genetic information essential for heredity, while RNA, particularly rRNA, plays a critical role in protein synthesis.
Similarly, proteins are polymers made up of amino acid monomers. These amino acids are linked together in a polypeptide chain through peptide bonds, with each additional amino acid extending the chain during the process of protein synthesis.
Therefore, DNA, rRNA, and proteins are all synthesized in a similar fashion where their respective monomers are added one at a time to form a polymer.