The Critical Concentration for Tubulin Polymerization Is the Concentration of

question 21

Multiple Choice

The critical concentration for tubulin polymerization is the concentration of

• A)tubulin dimers at which all dimers assemble into microtubules.
• B)unassembled tubulin dimers when assembly is balanced with disassembly.
• C)tubulin dimers at which dimers assemble onto microtubule minus ends but disassemble from plus ends.
• D)unassembled tubulin dimers when there is net disassembly of dimers from both microtubule ends.
• E)tubulin dimers in most cells.

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