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Aldopentoses named as ribose and 2-deoxy...

Aldopentoses named as ribose and 2-deoxyribose are found in nucleic acids. What is their relative configuration?

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In the Fischer projection formulae of ribose and 2-deoxyribose, `-OH` group is on the right side of the highest numbered asymmetric centre (i.e., `C-4`) and hence both the compounds have D-configuration.
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