The correct answers are: They provide localized regions of function and They are highly discrete and organized
Nuclear domains or bodies are membraneless structures within the nucleus that make nucleus compartmentalized. The function of these “compartments” is to enhance the efficiency nuclear processes. Nuclear bodies include:
• the nucleolus-the place where ribosome biogenesis occurs.
• Cajal bodies- consist of proteins and RNA; its functions are associated with telomerase assembly; in cells that divide rapidly
• splicing speckles –contain RNA splicing factors
• promyelocytic leukemia protein nuclear bodies-involved in programmed cell death; control cell division.
