The gene that codes for an enzyme to breakdown lipids in humans was spliced into rapidly dividing mice cells, which are then grown in the laboratory. Explain why scientists would perform this procedure.

It is likely that the researchers are studying the function of this gene that encodes for a lipase enzyme. In molecular biology, it is common to use cell lines which are transfected with constructs that contain genes or gene regions in order to study the function of these genes (or genetic elements )

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus