An Intron is a part of DNA that does not code for a functional protein
The answer is B, because in mRNA, the only change in bases is that A transcribes into U
The answer is: Signal transduction pathways.
The following that helps organisms in keeping their shape are the bones and the skeletal muscles. The bones serve as the framework of the body. The skeletal system supports all the other systems and along with the skeletal muscles, they give the shape of the body. The skeletal muscles are muscles that are attached to the bones for the voluntary movements of the body.
