Question

Describe the molecular composition of nucleoli and explain their function.

a) Nucleoli consist of DNA and lipids and function in energy production. They are responsible for storing genetic information.
b) Nucleoli are composed of proteins and ribosomal RNA (rRNA). Their primary function is to synthesize ribosomal subunits, which combine with rRNA to form ribosomes.
c) Nucleoli are made of carbohydrates and serve as energy storage organelles. They regulate cell division and DNA replication.
d) Nucleoli are composed of lipids and function in the synthesis of proteins. They are involved in storing and transmitting genetic information.

Answer 1

The nucleoli are composed of proteins and ribosomal RNA, and their function is to synthesize and assemble ribosomal subunits.

Step-by-step explanation:

The nucleoli are composed of proteins and ribosomal RNA (rRNA). Their primary function is to synthesize ribosomal subunits, which combine with rRNA to form ribosomes. The nucleoli are responsible for assembling the subunits of the ribosomes, which are organelles made of protein and rRNA. Ribosomes play a crucial role in protein synthesis in the cytoplasm.