Choose the best matching element.
-Single base-pair mutation

A)Results in a hairless appearance of the sphynx cat
B)RNA-directed process involving polypeptide chains
C)Sites at which RNA polymerases can bind and initiate transcription
D)Is bound by a small subunit of a ribosome to begin translation
E)Guided and catalyzed by RNA polymerases
F)Polypeptide chain elongation proceeds independently at each body in this cluster
G)Adds nucleotides to the end of a growing RNA
H)A tRNA triplet opposite a codon
I)A set of three nucleotides