Nucleus - Definition and Examples - Biology Online Dictionary

Quiz

Choose the best answer.

1. What is a nucleus?

The powerhouse of the cell

An organelle in a eukaryotic cell that contains the genetic material

The region containing the genetic material in a bacterial cell

2. A nuclear structure that is round, granular, and contains proteins and nucleic acids

Nucleolus

Chromatin

Nuclear envelope

3. Part of the nucleus that regulates the passage of molecules into and out of the nucleus

Nuclear body

Nuclear DNA

Nuclear envelope

4. The fibrillar component of the nucleus

Nuclear lobe

Nucleoplasm

Nuclear matrix

5. The biological process of creating mRNA

Replication

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