No, because "U," or Uracil, is found in RNA and not DNA.
sequence
No. It is a polymer polypeptide, which is a protein.
The nitrogenous base units of a nucleic acid are Adenine, Cytosine, Guanine, and Thymine. (in Dna) in RNA Thymine is replaced with Uracil. These base pair are often abreviated to A,C,T,G, and U....
The monomer is a nucleotide. It cotains the ribose sugar, tri-phosphate, and nitrogenous base.