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How many protofilaments are present in a single mammalian microtubule?(a) 5(b) 13(c) 20(d) 26I had been asked this question in class test.The question is from Cytoskeleton topic in portion Cytoskeleton and Cell Motility of Cell Biology

Answer»

Right choice is (b) 13

Explanation: There are about 10-15 protofilaments TYPICALLY found in an animal cell. Exclusively in mammals there are 13 protofilaments which WOUND up together to FORM a 24 nm wide cylindrical tubule.



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