How many types of gametes can be produced by an individual with the genotype $AAbb$?

$A$ man homozygous for brown eye colour marries a lady heterozygous for brown eye colour. Brown eye colour is dominant over blue. What will be the phenotype of their children?

As a result of the marriage between a curly-haired mother and a straight-haired father,$8$ children are born. What is the expected ratio of curly-haired to straight-haired children?

In $Drosophila$, the allele for a normal grey body colour $G$ is dominant to ebony body $g$. The following table summarises the results of several crosses:

$S.No$	Cross	Result
$I.$ Strain $1 \times gg$	All wild type
$II.$ Strain $2 \times gg$	$1$ wild type $: 1$ ebony
$III.$ Strain $3 \times gg$	All ebony
$IV.$ Strain $4 \times Gg$	$3$ wild type $: 1$ ebony

Which strains both have the genotype $Gg$?

In a monohybrid cross experiment,the genotypic ratio of the progeny in the $F_2$ generation is ....

When an individual has both alleles of a contrasting character,it is said to be: