The SRY locus of the Y chromosome is deleted is the answer.
One of the two sex chromosomes in humans is the Y chromosome (the other is the X chromosome). One of the 23 pairs of human chromosomes found in each cell are the sex chromosomes. The Y chromosome makes up over 2% of all DNA in cells and spans more than 59 million base pairs, the basic unit of DNA.
Each cell in a person typically contains one set of sex chromosomes. Males have one X and one Y chromosome, while females have two X chromosomes. The Y chromosome is present in males.
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