Yes they do have a cell wall
So here we have two heterozygous organisms that will mate. You can put them into a Punnet square, just to be sure of your answers and to find all possible genotypes :
R r
R RR Rr
r Rr rr
So you have RR, Rr and rr as your possible genotypes.
I believe the answer is Nucleus.
C.only determines phenotype when a dominant allele for the same trait is present.
