Final answer:
Nuclear lamins are responsible for providing structural support to the nucleus, thereby supporting and strengthening the nuclear envelope.
Step-by-step explanation:
The nuclear lamins are a meshwork of intermediate filaments that are found just inside the nuclear envelope. They provide structural support to the nucleus, thus helping maintain its overall shape and integrity. Nuclear lamins do not degrade nuclear proteins, move the nuclear envelope, pull the nucleus apart during cell division, or directly connect the endoplasmic reticulum and the nucleus. Instead, their main function is to support and strengthen the nuclear envelope, ensuring the stability of the nucleus within the cell's cytoplasm. The nuclear envelope itself is a double membrane structure, with protein-lined pores, that encloses genetic material and regulates the exchange of materials like RNA and proteins.