12. Gluconeogenesis is the synthesis of:(A) glucose from non-carbohydrate precursors.(B) glycogen from glucose.(C) pyruvate from glucose.(D) fatty acids from glucose.(E) glucose from fatty acids.

7. DNA double helix structure is stabilized by all of the following EХСЕРТ:(A) the sugar-phosphate backbones are oriented in opposite directions.(B) the glycosidic bonds holding paired bases are directly across the helix from one another.(C) cations such as Mg2+ bind to the anionic phosphates.(D) bases stack together through hydrophobic interactions and van der Waals forces.(E) appropriate base pairing builds a polymer whose external dimensions are uniform.

12. Gluconeogenesis is the synthesis of:
(A) glucose from non-carbohydrate precursors.
(B) glycogen from glucose.
(C) pyruvate from glucose.
(D) fatty acids from glucose.

(E) glucose from fatty acids.

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