Watson and crick first built a triple helix model of DNA. In this model, the nitrogenous pieces for on the outside of the Daynam molecule, in the phosphate groups were on the inside.

at that time, why did it seem reasonable for the bases to be on the outside of the DNA molecule?

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luisvaschetto luisvaschetto · Answer 1 · 2022-07-18T17:36:29+02:00

It is expected that the bases are located on the outside of the DNA molecule because it allows access in an easier mode for the cell.

Deoxyribonucleic acid (DNA) is a double helix composed of two long strands of nucleotide bases.

In DNA, nucleotide bases are expected to interact with the environment in order to make easier the process of transcription and replication.

In conclusion, bases are located on the outside of the DNA molecule to access in an easier mode for the cell.

Learn more about the DNA double helix here:

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