Earth is c. 4.5 billion years old
Answer: DNA the code of amino acid
explanation:
DNA and RNA are polymers composed of nucleotides.
<h3>What are polymers?</h3>
Polymers are large complex molecules that consist of small, simple parts that are linked together by chemical bonds. The small and simple parts of polymers are called monomer units. Hence, polymers are formed from monomers.
DNA and RNA are nucleic acids that are formed from nucleotides. In other words, DNA and RNA are polymers whose monomers are nucleotides. The nucleotide bases of DNA and RNA include the purine bases (Adenine and Guanine) and the pyrimidine bases (cytosine and thymine or uracil)
Polymers like DNA and RNA can be broken down by removing the bonds between monomers to give their monomer units.
More on polymers can be found here: brainly.com/question/17354715
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