In Lenski's experiments, the key to evolution of citrate feeding in
E.coli was the accidental duplication of the citT ______ together with the rnk _____.
A) gene; promotor
B) gene; gene
C) promotor; promotor
D) promotor; gene

Question

Quizplus · Accepted Answer

The key to the evolution of citrate feeding in E. coli in Lenski's experiments was the accidental duplication of the citT gene together with the rnk promotor. This duplication allowed for the expression of the citT gene in an environment where it normally would not be, enabling the bacteria to metabolize citrate under aerobic conditions.

In Lenski's Experiments, the Key to Evolution of Citrate Feeding