Question

R r
R RR Rr
r Rr rr
R = Dominant red flowers
r = Recessive white flowers
As part of the class's unit on genetics, Mr. Franks' 8th period science class decided to cross two plants. Each of the parent plants had red flowers and the genotype Rr. If the plants produce 100 offspring, how many of the plants will have red flowers?
a 50
b 25
c 75
d 100