Tuesday, November 20, 2012

the mutation that made mycobacterium tuberculosis resistant to antibiotics involved.


the mutation that made mycobacterium tuberculosis resistant to antibiotics involved...?
a.a missing chromosome b.an extra gene c.a single base change d.none of the above thank you so much for your help, its appreciated a TON! :)
Biology - 1 Answers
Random Answers, Critics, Comments, Opinions :
1 :
c.a single base change The point mutation conveying resistance to INH can occur in a population in which it is not present. The frequency at which it occurs makes drug-resistant strains a problem. As bacteria have a single circular chromosome, a loss would be impossible. A plasmid containing an extra gene would be possible, but it is not the case



 Read more discussions :
Posted by Tuberculosis at 2:41 PM