The pH of (i) stacking, (ii) resolving gel and (iii) tank buffer in SDS PAGE is_________ respectively

Q. The pH of (i) stacking, (ii) resolving gel and (iii) tank buffer in SDS PAGE is_________ respectively.

1. (i). 8.30 (ii) 8.80 (iii) 6.80
2. (i). 6.80 (ii) 8.80 (iii) 8.30
3. (i). 8.30 (ii) 6.80 (iii) 8.80
4. Any of the above

Answer: (i). 6.80 (ii) 8.80 (iii) 8.30