Hybrid breakdown refers to the condition when offspring are physiologically inferior to the following generation
${F_1}$
${F_2}$
${P_1}$
All of these
Definitions / Explanation : Genes & Alleles.
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.
If a plant heterozygous for tallness is selfed, the $F_2$ generation has both tall and dwarf plants. This proves the principle of
Test cross is important to know.
A cross between one tall plant and one dwarf plant resulted in offspring having tall plants. What would be the genotype of offsprings ?