What does a animal nucleus look like?

An animal cell nucleus is typically spherical or oval in shape and contains a double membrane known as the nuclear envelope, which has pores for material exchange. Inside, it houses chromatin (DNA and proteins) and a nucleolus, which is responsible for ribosome production. The nucleus appears distinct under a microscope, often staining darker than the surrounding cytoplasm due to the concentration of genetic material. Overall, it serves as the control center for cellular activities and gene expression.