Barr bodies are:

$A$: Holandric traits are passed from one generation to the next generation.
$R$: These traits appear more frequently in one sex than in other.

The males of grasshoppers and moths possess two sets of autosomes and:

$A$ fruit fly is heterozygous for sex-linked genes and is mated with a normal female fruit fly. In what proportion will the male-specific chromosomes enter the egg cells (in $:1$)?

In higher unisexual animals,one pair of chromosomes is not identical in two sexes. It is called as . . . . . . .

Which of the following organisms produce two types of gametes?