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AP Biology/Unit 1: Chemistry of Life
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DNA Backbone Structure and Function

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Which statement best describes how the structure of the sugar-phosphate backbone of DNA facilitates the storage and transmission of genetic information?

A

The backbone’s flexibility allows it to coil tightly, compressing genetic information for storage in the nucleus and enabling quick unraveling for transmission

B

The sugar-phosphate structure creates a hydrophobic environment that prevents water from interfering with base pairing, ensuring accurate information storage

C

The alternating sugar-phosphate backbone provides a stable, negatively charged exterior that protects the base pairs and allows for efficient replication and transcription

D

The sugar-phosphate backbone forms a positively charged interior that attracts and binds nucleotides, facilitating rapid genetic information transfer

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