Biosynthesis

... guess. Perhaps there is enough available proline in a Chinese hamster ovary that the wild-type cells are missing a functional gene for proline biosynthesis. Like I said, this is a guess. Does anyone have a more solid idea about this?

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... means (I'm only finishing my first semester of AP Biology). I'm pretty sure it's the right pathway because it includes gycolysis and fatty acid biosynthesis, but I don't know how to tell where they branch off, and that still doesn't answer my question of what causes one of the branches to be ...

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... of extra-pituitary sources of the neurohypophysial hormone oxytocin in non-neural tissues of several animal species. The presence, location and biosynthesis of significant amounts of oxytocin in the ovarian corpus luteum was followed by the immunocytochemical demonstration of an oxytocin-like ...

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... then estrogen (C18). Estrogen has an alcohol functional group at the C3 and C17 positions, and a methyl group at C13. A unique aspect of estrogen biosynthesis is the conversion (catalyzed by the enzyme aromatase) of the A ring to an aromatic ring. Estrogen is produced in the ovaries and secreted ...

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... found to accumulate one compound (A - D), as indicated in the following table. Mutant Accumulation 1 A 2 B 3 D 4 D The pathway for phenylalanine biosynthesis is given below. Place mutants 1,2,3 and 4 in the pathway to show the reaction each gene catalyzes. X -> R -> B -> A -> D -> ...

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