Chapter 10

Question 1

a change in the nucleotide sequence

Answer 1

mutation

Question 2

any chemical or physical agent that can damage DNA by changing its nucleotide sequence

Answer 2

mutagen

Question 3

any chemical agent causes cancer by damaging DNA; type of mutagen

Answer 3

carcinogen

Question 4

a gene that codes for a protein that helps cells divide normally

Answer 4

proto-oncogene

Question 5

genes that code for proteins that monitor and check cell cycle progression

Answer 5

tumor suppressor genes

Question 6

a muted and over active for of proto-oncogene, which causes cells to divide continually

Answer 6

onconogene