The best answer is A. The factor that may have led to the snails extinction is that there is an increase buildings on the islands. The Hawaiian tree snail lives in moist rainforests. They are listed as endangered due to human disturbances. The threat came when the first settlers in Hawaii began cutting trees, replacing their habitats with agricultural lads, buildings and other infrastructure.
The high movement of T7 RNA polymerase has made the T7 RNA polymerase-based articulation framework exceptionally amazing for significant level articulation of recombinant protein. In any case, the overactivity of T7 RNA polymerase would likewise realize negative consequences for plasmid security and protein creation, particularly while communicating a lethal protein. In the event that the last job is predominant, it is important to embrace a few measures to weaken the action or the measure of T7 RNA polymerase in the cells
This represents an issue when an engineered hereditary framework is presented. At the point when it depends on the interpretation and interpretation hardware of the host, it turns out to be verifiably implanted in their guideline, causing it delicate to changes that to happen during cell development and capacity
Hence, the right answer is option 2 "T7 RNAP activity is strengthly regulated"
