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28.7 MB (9.1 MB compressed)
2592 x 3872 pixels
21.8 x 32.8 cm ⏐ 8.6 x 12.9 in (300dpi)
MAREK MIS / SCIENCE PHOTO LIBRARY MAREK MIS / SCIENCE PHOTO LIBRARY
Glycine crystals. Polarized light micrograph of a section through crystals of glycine, the simplest of the amino acids. Glycine is a neurotransmitter. It is important in metabolism as it contributes carbon atoms in the formation of the blood pigments. Glycine is also used in the synthesis of adenine and guanine, two of the nucleotides used to form nucleic acids (DNA and RNA). Magnification: x100 when printed at 10 centimetres tall.
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