Question

1. in snapdragons, flower color shows incomplete dominance. when a red - flowered plant (rr) is crossed with a white - flowered plant (rr), what phenotype would be observed in the f1 generation?

a. all red flowers
b. all white flowers
c. all pink flowers
d. a 1:2:1 ratio of red: pink: white flowers

Explanation:

In incomplete dominance, the heterozygous phenotype is an intermediate between the two homozygous phenotypes. Here, the red - flowered plant (RR) and white - flowered plant (rr) will produce offspring with genotype Rr. Since it is incomplete dominance, the Rr genotype will show an intermediate phenotype.

Answer:

C. All pink flowers