What does the nuclear membrance do in animal cell?

The nuclear membrane, or nuclear envelope, in animal cells serves to enclose the nucleus, protecting the genetic material (DNA) contained within. It consists of two lipid bilayers and is punctuated by nuclear pores that regulate the exchange of substances, such as RNA and proteins, between the nucleus and the cytoplasm. This selective permeability is crucial for maintaining the internal environment of the nucleus and facilitating cellular processes like gene expression and replication.