What is thymine?

Answer 1

Thymine, also known as 5-methyluracil, is a pyrimidine nucleobase. As the name implies, thymine may be derived by methylation of uracil at the 5th carbon. Thymine is found in the nucleic acid DNA. In RNA thymine is replaced with uracil in most cases. In DNA, thymine(T) binds to adenine (A) via two hydrogen bonds to assist in stabilizing the nucleic acid structures.

Thymine combined with deoxyribose creates the nucleoside deoxythymidine, which is synonymous with the term thymidine. Thymidine can be phosphorylated with one, two or three phosphoric acid groups, creating respectively TMP, TDP or TTP (thymidine mono- di- or triphosphate).

One of the common mutations of DNA involves two adjacent thymines or cytosine, which in presence of ultraviolet light may form thymine dimers, causing "kinks" in the DNA molecule that inhibit normal function.

Answer 2

Thymine is a nitrogen-containing base that is found in the DNA. It is a pyrimidine (which is one of the two types of bases purine and pyrimidine) and typically combines with Adenine. When DNA does complementary base pairing, a pyrimidine always bonds with a purine (in this case Thymine-Adenine and Cytosine-Guanine respectively). In making RNA, Thymine is replaced with the base Uracil(U) but it still serves the same function.

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Answer 3

Thyimine is part of the DNA link. In the DNA thymine is binded to adenine, another chemical that makes up DNA, via two hydrogen bonds to stebilize the nucleic acid structures. In RNA thymine is replace by uracil.

Answer 4

Organic base of the pyrimidine family.