Which of the following characteristics is NOT true about the collagen molecule?

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Has a triple helical structureContains a high proportion of glycine amino acidsDisplays cross striations approximately 64 nm apartIs located inside the cellForms strong fibrous proteins

Explanation

Collagen is known for its triple helical (triple pleated) structure and is rich in glycine residues. It forms extracellular fibers that show characteristic cross striations at about 64 nanometers. However, collagen molecules are not intracellular; they are secreted outside the cell to form the extracellular matrix.