A point mutation is known as a singular base change in a polynucleotide sequence. In this mutation, a base is neither inserted nor deleted, thus, the reading frame is not altered. There are three types of point mutation: silent, missense and nonsense mutation.
What is a missense mutation?
A. a mutation whose effect is not yet known.
B. a mutation that changes a codon that specifies an amino acid to one that terminates translation.
C. a mutation that changes a codon to a synonymous codon.
D. a mutation that alters the reading frame of the gene.
E. a mutation that results in a different amino acid in a protein.
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