The traits controlled by the genes located on the $X$ chromosome of human beings are said to be:

How many types of sex determination mechanisms exhibit dissimilar sex chromosomes?

The theory where the ratio between the number of $X$-chromosomes and the number of complete sets of autosomes determines the sex is known as:

Individuals having homomorphic sex chromosomes produce:

The human embryo contains all the genetic instructions necessary to become either male or female. The male embryo contains a master regulatory gene that acts as a biological switch,turning other genes on and off. The absence of this gene results in a female,which remains sexually immature. This master regulatory gene is located on the .....

The $SRY$ gene is located on which chromosome?