The $SRY$ gene is located on which chromosome?

Who traced a specific nuclear structure all through spermatogenesis in a few insects and named it $x-$body?

$A$ man affected by a certain disease marries a normal woman. They have $8$ children ($3$ daughters and $5$ sons). All the daughters suffer from their father's disease,but none of the sons are affected. What type of inheritance can you suggest for this disease?

$A$ 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 $:1$)?

What is the number of chromosomes in a sterile female worker bee in a beehive?

The genes,which are confined to the differential region of the $Y$ chromosome only,are called: