In E.coli,the mutation of beta-lactamase in response to cefotaxime exposure involved five changes in the gene sequence,which can be accomplished through __________ different orderings.
A)16
B)32
C)64
D)120
E)240

Question

Quizplus · Accepted Answer

The number of different orderings for five changes can be calculated using the formula for permutations, which is n! (n factorial), where n is the number of items to arrange. For 5 changes, it's 5! = 5 x 4 x 3 x 2 x 1 = 120.

In EColi,the Mutation of Beta-Lactamase in Response to Cefotaxime Exposure Involved