All of the following structures are found in (or surrounding) the nucleus of a cell, except the ________.

A) centrioles
B) chromatin
C) nucleolus
D) nuclear envelope
E) nuclear pores

Centrioles

Cylindrical organelles near the nucleus in animal cells, involved in the development of spindle fibers in cell division.

Chromatin

The complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells, serving to package DNA into a smaller volume to fit in the cell and control gene expression.

Nucleolus

A structure located within the cell nucleus, primarily involved in the synthesis and assembly of ribosomes, essential components for protein production.