Which of the following reactions is used to radioactively label DNA?
A. Restriction digestion of DNA
B. Synthesis of new DNA
C. Ligation of DNA
D. Degradation of DNA

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .

In which part of the body is a ball-and-socket joint found?

Which diagram best represents the chromosomes that would be found in a two new skin cells produced as a result of this process?