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Credit: "Some footnotes on protein synthesis". Source: Wellcome Collection.
20/27
![Summary In this note we point out; (1) that soluble RNA may have a DNA-like secondary structure in order to cover up the adaptor sequence 'when no amino acid is attached co the RNA. (2) that at some stage the amino acid may he attached to the N]_ of the pseudo-uridine of soluble RFA. (3) that two particles of different size and shape can be constructed from identical protein subunits if combined with RNA molecules of different length. In particular both the 50 S and the 30 S ribosomal particles may be incomplete parts of a spherical shell.](https://iiif.wellcomecollection.org/image/b18179782_PP_CRI_H_2_34_0020.jp2/full/800%2C/0/default.jpg)
