Describe incomplete dominance.
Describe incomplete dominance.
When experiments on peas were repeated using other traits in other plants it was found that sometimes the $F_{1}$ had a phenotype that did not resemble either of the two parents and was in between the two.
The inheritance of flower colour in the dog flower (Snapdragon or Antirrhinum sp.) is a good example to understand incomplete dominance.
In a cross between true - breeding red flowered [$RR$] and true - breeding white flowered plants ( $rr$) the $F_{1}[R r]$ was pink.
When the $\mathrm{F}_{1}$ was self pollinated the $\mathrm{F}_{2}$ resulted in the following ratio $1$ [ $RR $] Red : $2[\mathrm{Rr}]$ Pink : $1[\mathrm{rr}]$ White.
Here the genotype ratios were exactly as we would expect in any mendelian monohybrid cross, but the phenotype ratio had changed from the $3: 1$ dominant : recessive ratio.
$'R'$ was not completely dominant over $r$ and this made it possible to distinguish $\mathrm{Rr}$ as pink from $RR$ [red] and $rr$ [white].
Similar Questions
Geno typic and phenotypic ration in the offspring is $1:2:1$ it explain the principle of
Geno typic and phenotypic ration in the offspring is $1:2:1$ it explain the principle of
In incomplete dominance
In incomplete dominance
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
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
- [NEET 2019]
In red - white flowered cross snapdragon / antirrhinum, $F_2$ generation has red, pink and white flowered plants in the ratio of
In red - white flowered cross snapdragon / antirrhinum, $F_2$ generation has red, pink and white flowered plants in the ratio of
${F_1}$ hybrid is intermediate between the two parents. The phenomenon is
${F_1}$ hybrid is intermediate between the two parents. The phenomenon is