Question

a chemical that causes alterations in dna is a ____, and if this chemical causes cancer it is called a(n) ____. carcinogen; mutagen tumor suppressor; proto - oncogene tumor suppressor; mutagen tumor suppressor; oncogene mutagen; carcinogen

Explanation:

• A mutagen is a chemical that causes alterations in DNA.
• A carcinogen is a chemical that causes cancer.
• Tumor suppressor genes regulate cell division and prevent cancer. Proto - oncogenes are normal genes that can become oncogenes (cancer - causing genes) when mutated.

Answer:

mutagen; carcinogen