The genetic material of a cell is found in the cell nucleus in a molecule called DNA. It consists of a set of nucleotides which each have a different base, which may be Adenine, Thymine, Guanine or Cytosine. The sequence of bases found in DNA is what indicates the genetic diversity of an organism. This is because this sequence is used to synthesize proteins, which are molecules with different functions such as structural, enzymatic, etc.. Each three of these bases encodes a different amino acid, which together form the proteins.
During mitosis, the nucleus of a cell divides to form two daughter cells. To do this, it is first necessary to <u>duplicate the DNA so that each of the new copies ends up in each of the daughter cells.</u> At the end, a fissure emerges in the center of the cell and the two new cells are formed.
Uracil is a nitrogenous base (pyrimidine) specific for RNA. The nucleoide of uracil is called uridine and nucleotide is called uridine monophosphate or uridylate. In the DNA, there is thymine instead of uracil.
So if we mark the uracils, only the RNA will be marked. The DNA will not be given that there is no uracil in it.
