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. All of the following about microtubules in a cilium or flagellum are true EXCEPT:

a.The inner microtubules are responsible for the microtubule sliding that causes bending
b. The outer microtubules are composed of a special "doublet" structure.
c.The outer microtubules carry two rows of dynein molecules.
d. Both inner and outer microtubules are stable.
e. They are arranged in a special "9+2" array.

User ZiMtyth
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Final answer:

The statement that is not true about microtubules in a cilium or flagellum is that both inner and outer microtubules are stable.

Step-by-step explanation:

The statement that is not true about microtubules in a cilium or flagellum is d. Both inner and outer microtubules are stable. The inner microtubules are responsible for the microtubule sliding that causes bending, the outer microtubules are composed of a special "doublet" structure, and the outer microtubules carry two rows of dynein molecules. However, microtubules in a cilium or flagellum are not stable and undergo dynamic assembly and disassembly.

User NathanAldenSr
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