Fig. 3.
Double mutation distribution in cloned BH10 (MID2). (A) Double mutation patterns in MID2. The numbers are the nucleotide position of the inner mutation. The nucleotides before the position numbers are two nucleotides in MID sequences. The nucleotides after the position numbers are two corresponding nucleotides in the reference sequence; (B) examples of double mutations in a homopoly A region; and (C) examples of double mutations in a non-homopoly A region.