Z. Ahmed, M. E. Babar*, T. Hussain*, A. Nadeem**, F. I. Awan***, A. Wajid**, S. A. Shah** and M. M. Ali**
University of Pooch, Rawalakot, Azad Jammu and Kashmir; *Virtual University of Pakistan, Lahore.
**Institute of Biochemistry & Biotechnology, University of Veterinary and Animal Sciences, Lahore-Pakistan
***Centre for Applied Molecular Biology, University of the Punjab, Lahore, Pakistan.