In the $F_2$ generation of a Mendelian monohybrid cross,how many individuals retain the parental genotypes (in $\%$)?

$A$ heterozygous tall plant is crossed with a dwarf plant. The proportion of dwarf plants in the offspring will be: (in $\%$)

When the $F_1$ hybrid $Tt$ is crossed with the recessive parent $tt$,it is a case of....

$A$ pure tall garden pea plant is crossed with a pure dwarf garden pea plant. When the $F_1$ generation plants are self-pollinated,the resulting genotypic ratio is:

In a plant,the genotype of the $F_1$ generation is $AABbCC$. Upon self-pollination of this plant,the phenotypic ratio in the $F_2$ generation will be:

Determine the number of possible types of gametes produced by an organism with the genotype $AABBCC$.