The genotypic ratio of a monohybrid cross in $F_{2}$-generation is
$3: 1$
$1: 2: 1$
$2: 1: 1$
$9: 3: 3: 1$
Which one of the following cannot be explained on the basis of Mendel's law of Dominance ?
In a monohybrid cross of plants with red and white flowered plants, Mendel got only red flowered plants. On self-pollinating these $F_1$ plants got both red and white flowered plants in $3:1$ ratio. Explain the basis of using $RR$ and $rr$ symbols to represent the geno type of plants of parental generation.
The crossing of a homozygous tall plant with a dwarf in $F2$ would yield plants in the ratio of
When Mendel crossed true breeding white-flowered strain of peas with a true breeding red-flowered strain, individuals in the $F_2$ represented
Organisms phenotypically similar but genotypically different are said to be