Thymine

Thymine (/ˈθaɪmɪn/) (symbol T or Thy) is one of the four nucleobases in the nucleic acid of DNA that are represented by the letters G–C–A–T.

The others are adenine, guanine, and cytosine. T

hymine is also known as 5-methyluracil, a pyrimidine nucleobase.

In RNA, thymine is replaced by the nucleobase uracil.

Thymine was first isolated in 1893 by Albrecht Kossel and Albert Neumann from calf thymus glands, hence its name.^[2]