The nuclear lamina is an array of filaments on the inner side of the nuclear membrane. If a method were found that could cause the lamina to fall into disarray, what would you most likely expect to be the immediate consequence?
A) the loss of all nuclear function
B) the inability of the nucleus to divide during cell division
C) a change in the shape of the nucleus
D) failure of chromosomes to carry genetic information
E) inability of the ribosomes to produce proteins

Question

Quizplus · Accepted Answer

The nuclear lamina provides structural support to the nucleus and helps maintain its shape. Disarray of the lamina would likely result in a change in the shape of the nucleus. This can be seen in diseases such as progeria, where mutations in genes encoding lamina proteins cause abnormal nuclear shape. While significant lamina disruption could potentially affect nuclear function, it is not necessarily immediate or uniform enough to result in the loss of all nuclear function (A) or failure of chromosomes to carry genetic information (D). The inability to divide during cell division (B) is also not necessarily immediate or total, and may depend on the severity and cause of the lamina disruption. Inability of ribosomes to produce proteins (E) is unlikely to be affected by lamina structure, which is primarily involved in nuclear architecture.

The Nuclear Lamina Is an Array of Filaments on the Inner