Answer:
the methyltransferase catalyzes the addition of a methyl group onto the 5' position of cytosine through a complex, multi-step process.
Explanation:
I would assume it is neutral stimulus but I may be wrong
A solution that has a pH of 6.8
it is <em>acidic</em><em> </em>as it has got ph value less than 7....But as it has got ph value near to 7 it is weak acidic..
B. It allows some molecules to enter the cell and blocks entry to others.