Certain animal cells normally have well-defined spherical nuclei when observed by light microscopy. Cells with a genetic defect have irregularly-shaped nuclei. Which of the following cytoskeletal elements is most likely affected by this genetic defect?
A) intermediate filaments
B) microfilaments
C) microtubules
D) myosin proteins

Question

Quizplus · Accepted Answer

Intermediate filaments, including nuclear lamins, provide structural support and shape to the nucleus. A defect in these filaments can lead to irregularly-shaped nuclei.

Certain Animal Cells Normally Have Well-Defined Spherical Nuclei When Observed