Would removing colistin and nalidixic acid fron CNA alter th

Would removing colistin and nalidixic acid fron CNA alter the medium

Solution

Colistin and nalidixic acid are selective agents used in CNA agar against Gram negative bacteria. CNA medium is used to grow Gram positive organism. So removing colistin and nalidixic acid from CNA medium will allow growth of both Gram positive and Gram negative bacteria.