Frieda is developing a computer model of mutations in human DNA. She plans for the model to incorporate one point mutation for every 10
million base pairs of DNA, which is a rate that is supported by her research. However, her advisor argues that mutations could occur 100 times
more frequently under certain circumstances.
Which could most likely cause the increase in mutation rate that the advisor describes?
A
mutagens in the environment, such as tobacco smoke and certain pesticides
B. human cells that have especially large amounts of DNA
C. the presence of transcription factors that control gene expression
D. the presence of epigenetic factors that affect gene expression
PLEASE HELP