Which Statement Correctly Distinguishes Kinetochore Microtubules from Polar Microtubules

question 75

Multiple Choice

Which statement correctly distinguishes kinetochore microtubules from polar microtubules?

• A) Kinetochore microtubules are replaced by polar microtubules when the chromatids move toward the poles.
• B) Only polar microtubules contain cytoplasmic dynein,which acts as a "molecular motor."
• C) Kinetochore microtubules attach to the chromosomes,whereas polar microtubules extend from one pole to the other.
• D) Kinetochore microtubules form before polar microtubules.
• E) There is no difference;they are both names for the same structure.

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