how mutation happens

Question 1

spontaneous mutations

Answer 1

occur in the absence of a chemical or physical mutagenic agent

Question 2

spontaneous mutation includes

Answer 2

ACTG incorporation mistakes during DNA replication

Question 3

spontaneous mutation frequency

Answer 3

1 in 10 replicated base pairs or 1 in 10 replicated genes

Question 4

induced mutations

Answer 4

occur when a mutagenic agent is present

Question 5

induced mutations includes

Answer 5

incorporation of base analogs (e.g. bromo-uracil)

Question 6

induced mutation frequency

Answer 6

far higher than spontaneous mutation rates but is dependent upon concentration of mutagen