Question

1. what is the dense area within the nucleus called where ribosome assembly begins?

golgi apparatus
vacuole
nucleolus
chloroplast

Explanation:

The nucleolus is a dense - region within the nucleus where ribosome assembly starts. The Golgi apparatus is involved in modifying, sorting, and packaging proteins and lipids. A vacuole is a storage organelle. Chloroplasts are the sites of photosynthesis in plant cells.

Answer:

C. nucleolus