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This is a close-up, slightly angled photograph of a page from a textbook or document. The page displays scientific information about the amino acid Cysteine and its ability to form disulfide bonds. The text is printed in black ink. On the right side of the page, running vertically, is the heading "Cysteine can form Disulfide Bonds". Below this, there are chemical structures of Cysteine molecules. The structures show the amino group (NH3+), the carboxyl group (COO-), and the side chain containing a sulfur atom (SH). An arrow indicates a reaction where two Cysteine molecules combine, losing hydrogen ions and electrons, to form a disulfide bond (-S-S-) between them. The left side of the page shows another chemical structure of Cysteine, mirrored to the right side, and more text that is partially obscured by the angle and the edge of the page. There is also a page number "21" visible at the bottom left. The background appears to be a dark, textured surface, possibly a table or floor, with a geometric pattern. The lighting in the image is overhead, creating shadows and highlights on the paper. There is no visible information in the image that indicates the location of Jalingo, Nigeria.
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