Kip studies flower color in petunias, where the allele for red flowers, R, is dominant to the allele for white flowers, r. If Kip makes the cross RR x rr, the gametes that are produced
A
will all carry the r allele.B
will all carry the R allele.C
by one parent will carry R and by the other parent will carry r.D
by one parent will carry Rr and by the other parent will carry rR.