Induced Mutations Can Occur as a Result of ________

Induced mutations can occur as a result of ________. (Select all that apply)

A) chemicals that alter the structure of purines or pyrimidines so they no longer form complementary base pairs
B) nonionizing radiation causing formation of adenine dimers
C) chemicals that add a functional group to nucleotides that distort their structure and cause errors during replication or repair
D) ionizing radiation damaging DNA by creating reactive ions that chemically alter nucleotides