A monomer is a molecule, which means that it is a group of two or more atoms, which are bound in a chemical bounds. So the correct answer is <span>a unit made of several atoms. </span>
Nonsense mutation: a sense codon changes into a chain-terminating codon.
Missense mutation: a single nucleotide changes the codon and the corresponding amino acid
Silent mutation: A change in that does not result in a change of amino acids (ex: AAA and AAG both code for lysine)
He could not explain why the continents were moving.
Answer:
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Explanation: