... estrogens, biosynthesis of prostaglandins,biosynthesis of serotonin and melatonin, ceramide biosyn-thesis, cyclic AMP biosynthesis, cyclic GMP biosynthesis, Lel-oir pathway, sphingomyelin metabolism, ... pathways for the mouse that have been also submit-ted for inclusion in the MetaCyc reference database includebiosynthesis of androgens, biosynthesis of corticosteroids,biosynthesis of estrogens, ... expressed in oocytes. (b) The inability of glucose utilization by mouse oocytes may be due to the lack of hexokinases required for the first step in glycolysis. Genes next to the corresponding...