Which cytoskeletal element is responsible for forming the contractile ring during cytokinesis in animal cells?
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Correct answer: Microfilaments
The contractile ring is composed of actin microfilaments and myosin II motor proteins. As the actin filaments slide past each other, the ring tightens, eventually pinching the parent cell into two daughter cells.
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More Cytoskeleton and Its Filaments questions
- Which of the following intermediate filaments is specifically found in the nucleus and provides structural support to the nuclear envelope?
- Which motor protein typically moves cargo toward the 'minus' end of microtubules, usually toward the centrosome?
- The '9+2' arrangement of microtubules is a structural hallmark of which cellular organelles?
- In the context of muscle contraction, actin filaments interact with which motor protein?
- Which of the following is a key functional difference between intermediate filaments and the other two cytoskeletal components?
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