PSI. Pounds per square inch: a unit for measuring pressure. One PSI equals the pressure resulting from a force of one pound force acting over an area of one square inch. See pound.
  The four bases that make up RNA are:   * Adenine (A)  * Cytosine (C)  * Guanine (G)  * Uracil (U).denine and guanine are complementary, as are thymine and cytosine. RNA is practically the same, â¦ except that thymine is replaced with uracil (U) - meaning that when RNA replicates DNA, any thymine needed is replaced with uracil. Uracil is still compatible with cytosine, though.
Neither are made up of any of those acids. DNA codes amino acids to make proteins, Both DNA and RNA are nucleic acids, and carbohydrates are sugars.Like another poster said, if you don't understand that, then you are in trouble. EDIT Actually, the difference between DNA and RNA is DNA contains thymine. just now. Report Abuse. DNA is made from deoxyribonucleic acid and RNA made from ribonucleic acid: The backbone of the DNA strand is made from alternating phosphate and sugar residues.[8] The sugar in DNA is 2-deoxyribose, which is a pentose (five-carbon) sugar.