match each description with the correct type of point mutation. a. changes a codon for one amino acid into a different codon for the same amino acid. (click to select) b. one or a few base pairs are replaced by different base pairs. (click to select) c. one or a few base pairs are lost. (click to select) d. changes a codon for one amino acid into a codon for a different amino acid. (click to select) e. changes a codon for one amino acid into a stop codon. (click to select) f. an addition or deletion that alters the codons downstream from the mutation. (click to select) g. this type of mutation causes huntington's disease and has only been observed in humans and mice. (click to select) h. one or a few base pairs are gained. (click to select) i. an addition or deletion that alters the codons upstream from the mutation. (click to select)