Answer :
Final answer:
The expected genotypic ratio for the offspring of two pink carnations (RW crossed with RW) exhibiting incomplete dominance in flower color is 1 RR : 2 RW : 1 WW.
Explanation:
When two pink carnations with the genotype RW are crossed, we can predict the expected genotypic ratio of their offspring by using a Punnett square. In incomplete dominance, the heterozygote (RW) exhibits a blending of the two parental phenotypes, therefore red and white alleles produce a pink phenotype.
Crossing two RW heterozygotes, the genotypes of the offspring can be given by the following Punnett square:
R WR RR RW
W RW WW
This results in one red flower (RR), two pink flowers (RW), and one white flower (WW). The expected genotypic ratio of their offspring is thus 1 RR : 2 RW : 1 WW.