Sex chromosomes of a female bird are represented by

The sex in $Drosophila \text{ } melanogaster$ is determined by

There are five daughters and no son in a family. It may be due to

In the buccal cavity slide cell of an individual, we observe a dark-stained body near the nuclear membrane. The genotype of the individual may be

$A$ man can inherit his $X$-chromosome from his

$A$ medical technician, while observing a human blood smear under the microscope, notes the presence of a Barr body close to the nuclear membrane in the $WBC$. This indicates that the person under investigation is: