A true breeding plant producing red flowers is crossed with a pure plant producing white flowers. Allele for red colour of flower is dominant. After selfing the plants of first filial generation, the proportion of plants producing red and white flowers in the progeny would be

Cross between the pure tall plant from $F_1$ and dwarf plant will give

Hybrid breakdown refers to the condition when offspring are physiologically inferior to the following generation

In wheat, when a green plant was self-fertilized, the progeny had $209$ green seedlings and $14$ white seedings. The above result indicates that

In one cross between red flower and white flower the offsprings have red flower in majority and white flowers are much less. In this cross red colour character is