The color of the petals in a carnation is determined by an incomplete dominance pattern. The Punnett square is used to determine the genotypes of the offspring of a homozygous red (RR) and a homozygous white (rr) carnation.
According to the Punnett square, what color of petals could result from the pairing of these plants?
A.
only red flowers
B.
only pink flowers
C.
white and red flowers
D.
red and pink flowers
The Punnett square for this cross would be:
R | R
r | Rr
From the Punnett square, the possible genotypes of the offspring are Rr, which represents the pink color. Therefore, the color of petals that could result from the pairing of these plants is D. red and pink flowers.