Why did mosquitoes develop resistance to DDT?

A. Because it was killing them so they had to do something!

B. The government reduced their use of DDT after the book Silent Spring and the mosquitoes used the time to develop defenses against DDT.

C. The ones which had a genetic variant that was tolerant of the DDT survived and reproduced.

D. The nuclear DNA mutated and some individual mosquitoes developed resistance.

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions, because prokaryotes don't have nuclei.