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

Multiple Choice

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