(02-11-2017, 03:20 AM)SãñGáM Mìshra Wrote: Thnxx......little more SIR
BEST REGARDS,
SANGAM MÌSHRÅ
I guess question was: At the end of which phase of cell cycle there is "2n" number of chromosomes.
In my understanding of things, as I said earlier, ploidy never changes, only the number of chromatids change (92 in S and G2)... chromosome number (2n = 46) stays the same....so 2n (diploid state) number is in all four phases for me...
If the pH of a protein is reduced to 1.5....below it's isoelectric point,which of it's group would be ionisable ?
i)COOH
ii)NH2
iii)Both of these
iv)Both would be neutral
(02-11-2017, 05:29 PM)Shubhangi Srivastava Wrote: If the pH of a protein is reduced to 1.5....below it's isoelectric point,which of it's group would be ionisable ?
i)COOH
ii)NH2
iii)Both of these
iv)Both would be neutral
At isoelectric point, amino acid exists in Zwitterion state...Reducing the pH below isoelectric point means addition of H+ ions to the medium....this would allow -COO(-) ion of zwitterion form to pick up the H+ ion and become -COOH, leaving behind -NH3(+) ionic form....
Ohh...sorry for that...but I haven't been always right, just putting my point of view to various questions...
And, yes, some questions might get wrong, but on a road for glory, little damage is always inflicted In the end, we are going to have either a lesson or an experience, and both are worth having, so all the best once again!