In snapdragon ($Antirrhinum$ $majus$),the hybrid between red and white flowered plants is pink flowered. This is an example of:

Pure red flower $\times$ Pure white flower $=$ Pink flower. This is an example of:

Apart from pea plants,it has sometimes been observed that the $F_1$ phenotype does not resemble either of the two parents and is in between the two. This is due to .....

In a cross between male and female pea plants,both are heterozygous for round seeds,what percentage of the progeny will be having intermediate sized starch grains (in $\%$)?

When both the genotype and phenotype ratios are the same in the $F_2$ generation,it is an example of:

When a pure red-flowered $(RR)$ snapdragon plant is crossed with a pure white-flowered $(rr)$ plant,the $F_1$ generation produces pink flowers. When this $F_1$ progeny is self-pollinated,the resulting $F_2$ generation ratio is $1$ $(RR)$ red : $2$ $(Rr)$ pink : $1$ $(rr)$ white. This phenomenon can be explained by: