In a particular plant, RR, Rrand Ir are the genotypes for a gene. How many phenotypes are possible if the R is dominant to r?

c. movement because i took the test and it lets me review my answers

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

well, i believe that the answer is 2. : 3