The origin of thymine and cytosine in Tetrahymena.
D001669:Biochemical Phenomena; D016798:Ciliophora / Q000378:metabolism*; D003596:Cytosine; D006801:Humans; D011743:Pyrimidines / Q000378:metabolism*; D013768:Tetrahymena; D013941:Thymine / Q000378:metabolism*
D011743:Pyrimidines; D003596:Cytosine; D013941:Thymine
CILIATA/metabolism; PYRIMIDINES/metabolism; THYMINE/metabolism