3) radioactive uracil can be used to label all the pyrimidine residues in dna. explain how this occurs, thinking about pyrimidine synthetic pathways.

Pyrimidine de novo synthesis is an indication that compartmentation inside extraordinary elements of the cell – cytosol, mitochondria, chloroplasts – complements the mode of law and versatility of a metabolic pathway the bulk of species, uracil residues are eliminated from DNA through unique uracil-DNA glycosylases withinside the base excision restore pathway.

Alternatively, in sure archaeal organisms, uracil residues are removed through apurinic/apyrimidinic (AP) endonucleases withinside the nucleotide incision restore pathway.Radioactive uracil may be used to label all the pyrimidine residues in DNA. Using both names or structures, entire pathways for the conversion of uracil to dTTP and to dCTP.