Cancer and Gene Expression R 24/25

Front

What is a gene that protects a cell from becoming cancerous?

Back

Tumor suppressor gene.

Front

What happens when gene expression occurs?

Back

The gene is activated and used in protein synthesis.

Front

Where is DNA found in a human cell?

Back

In the nucleus.

Front

What is the analogy used to describe a mutation in a tumor suppressor gene?

Back

Driving a car without properly functioning brakes.

Front

Can gene expression be changed temporarily or permanently?

Back

Yes, it can be changed temporarily by environmental and lifestyle changes or permanently by gene mutations.

Front

What is the role of tumor suppressor genes in cancer prevention?

Back

They help regulate cell division and prevent uncontrolled growth.

Front

What is the process by which a gene's information is used to synthesize proteins?

Back

Gene expression.

Front

What is a mutation?

Back

A change in the DNA sequence that can affect gene function.

Front

What is the difference between a tumor suppressor gene and an oncogene?

Back

Tumor suppressor genes prevent cancer, while oncogenes promote cancer.

Front

How can lifestyle changes affect gene expression?

Back

They can lead to temporary changes in how genes are expressed.