Question 20
An example of a suppressor mutation would be
| | A mutation that suppresses cell growth |
| | An intergenic mutation that increases the activity of a proteinperforming a different function as the mutated protein |
| | An intragenic mutation that restores the inactive protein'sstructure |
| | An intergenic mutation that activates a transcription factorthat increases the expression of a normal protein |
Question 23
The mechanism for reactive oxygen species to cause mutationis
| | the reactive oxygen species stabilize different tautomeric formsof the bases causing inappropriate pairing |
| | thymine bases are dimerized which causes a break in the DNAwhich is not repaired correctly |
| | guanine is depurinated by the reactive oxygen species and if itis not repaired can result in any base being inserted |
| | bases are oxidized to a variety of different products whichmight pair with a different base than the original base wouldhave |
