Hypotonic solution is the one that contains lesser concentration of solute (such as salt concentration) and higher concentration of solvent such as water.
On the other hand, hypertonic solution is the one that has higher concentration of solute (such as salt concentration) as compared to solvent concentration.
The four nitrogenous bases in DNA are adenine, guanine, cytosine, and thymine. They pair A-T, G-C and when transfering with RNA, A-U, which is known as Uracil, so, the pairs would be...