4) Xeroderma pigmentosa (XP) is a rare genetic disease caused by defective photorepair mechanisms. Individuals with XP have a 1000-fold higher risk of skin cancer than those without XP. Explain why
individuals with XP have a higher risk of skin cancer. What precautions do you think an individual with
XP must take on a daily basis?

Transposon can cause mutations in genes at or near the site of transposon insertion. it is possible for these elements to transpose away from their original site, causing a reversion of the mutant phenotype. in some cases, however, even more severe phenotypes appear when these elements excise from this site, due to events at or near the mutant allele. what might be happening to the transposon or the nearby gene to create more severe mutations?