In a Mendelian monohybrid cross, the $F_2$ generation shows identical genotypic and phenotypic ratios. What does it tell us about the nature of alleles involved? Justify your answer.
In a monohybrid cross, starting with parents which homozygous dominant and homozygous recessive $F_{1}$, would be heterozygous for the trait and would express the dominant allele. But in case of incomplete dominance a monohybrid cross shows the result as follows.
Phenotypic ratio $\rightarrow$ Red : Pink: White :: $1: 2: 1$
Genotypic ratio $\rightarrow$ $RR$ : $Rr$: $rr$ : : $1: 2: 1$
Alleles can show incomplete Dominance when genotypic and phenotypic ratios are same.
In red - white flowered cross snapdragon / antirrhinum, $F_2$ generation has red, pink and white flowered plants in the ratio of
In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in $\mathrm{F}_{1}$ generation, pink flowers were obtained. When pink flowers were selfed, the $\mathrm{F}_{2}$ generation showed white, red and pink flowers.
Choose the incorrect statement from the following
A pink flowered Snapdragon plant was crossed with a red flowered Snapdragon plant. What type of phenotype/s is/are expected in the progeny?
In snapdragon / antirrhinum, hybrid between red and white flowered plants is pink flowered. This is .
In certain plant species, red flower colour is incompletely dominant to white flower colour (the heterozygote is pink) and tall stems are completely dominant to dwarf stem. If a tall pink plant $(TtRr)$ is crossed with a tall white plant $(TTrr),$ which one of the following type of plants would be produced in the offsprings?