What are the genotype of F1 generation, phenotypic ratio in F2 generation and genetic explanation for the absence of red and white in F1 generation given parent plants are pure red and pure white with

$$
R \times W \implies RW
$$
The genotype of the F1 generation is $\boxed{RW}$.

• b) If 200 plants from F1 generation were selfed, what would be the phenotypic ratio in the F2 generation?

$$
1 \text{ Red} : 2 \text{ Pink} : 1 \text{ White}
$$
The phenotypic ratio in the F2 generation is $\boxed{1 \text{ Red} : 2 \text{ Pink} : 1 \text{ White}}$.

• c) What is the genetic explanation for the absence of plants with red and white in the F1 generation? The genetic explanation is incomplete dominance. Neither the allele for red color ($R$) nor the allele for white color ($W$) is completely dominant over the other. When both alleles are present in the heterozygous state ($RW$), they produce an intermediate phenotype, which is pink flowers, rather than either red or white.

41 White), this indicates a cross between two heterozygous parents where one allele is dominant over the other.

Since the parents are described as "red flowers" and produce white offspring, they must be heterozygous red.
The genotypes of the parent plants are $\boxed{Rr \times Rr}$ (heterozygous red).

• c) If the white flowers were selfed, what would be the genotypes of their offspring?

Since white is the recessive character, its genotype is $rr$.