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

$A$ black dog heterozygous for the colour is crossed with a white bitch,which is recessive homozygous. The progeny will show black to white offspring in the ratio of:

Find out the percentage of dominant phenotype in a cross between $Pp$ and $Pp$. ($P$ = dominant,$p$ = recessive) (in $, \%$)

How many types of gametes can an organism with the genotype $aabbCc$ produce?

$A$ cross between one tall plant and one dwarf plant resulted in offspring having tall plants. What would be the genotype of offsprings?

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