obsolete cytosine biosynthetic process (obsolete GO:0046089)
OBSOLETE. The chemical reactions and pathways resulting in the formation of cytosine, 4-amino-2-hydroxypyrimidine, a pyrimidine derivative that is one of the five main bases found in nucleic acids; it occurs widely in cytidine derivatives.
cytosine anabolism
exact
cytosine biosynthesis
exact
cytosine formation
exact
cytosine synthesis
exact