Which of the following best defines sustainable fishing practices?
a.
harvesting practices that maximize yields and profits.
b.
harvesting practices that maximize the yield per fisherman.
c.
harvesting practices that do not reduce the potential for future harvests.
d.
harvesting practices that reduce the potential for future harvests.

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?