The $SRY$ gene is located on which chromosome?

The Lyon hypothesis deals with:

How many pairs of autosomes are present in Drosophila?

In a population of a grasshopper species,the chromosome number of some members is $23$ and some other members possess $24$ chromosomes. The $23$ and $24$ chromosome-bearing members in this species are . . . . . . .

In humans,the inheritance of sex-linked traits takes place through

Male heterogamety,which is essential for sex determination in new offspring,is observed in which of the following?