Bob bought school supplies for school. A mechanical pencil for $2.53, a 5 subject notebook for $6.10, glue for $.50 and a pencil sharpener for $1.45. How much did get in change if he paid with a $20? * 20 points

Abacterium was found to contain a sequence of atcgggatcct in its genome. a few generations later, the sequence was found to be atcatcct. what type of mutation caused this change in the bacteria? a. duplication b. insertion c. inversion d. translocation