Examlex
Over the course of history, which of the following have been common substitutes for breast milk?
Deoxyribose
A five-carbon sugar molecule that is a component of DNA, differing from ribose by the absence of an oxygen atom at the second carbon position.
Ribose
A five-carbon sugar found in RNA that is crucial for various biological processes, including RNA synthesis.
Helix Shape
A three-dimensional shape characterized by a structure that curves around a central axis like a spiral, common in DNA structures.
Radioactive Isotopes
Unstable atoms that decay, emitting radiation in the form of alpha, beta, or gamma rays.
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