Match the experiments in the graph to one of the four scenar

Match the experiments in the graph to one of the four scenarios: cells A and B, fimbriae regulation, or cells C and D tox gene regulation in C. diphtheria

Solution

EXPERIMENT NO1. the tox gene in Corynebacteria diptheria produces one of the most powerful toxin.

ans- C IN host with low iron concentration.

EXPLANATION- TOX gene is present in prophage chromosome. a bacterial repressior protein controls the expression of the gene the repression is activated by iron. high production of toxin is done by lysogenic bacteria in low iron concentration.