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The Y chromosome is disappearing. Here’s what it means for men
However, they had difficulty finding the SRY gene. In 2022, they successfully identified DNA sequences present in male rats and not females. After studying the sequences closely, they also ...
PBS13y
Week 6 (later)—Male
If the Y chromosome is present in the embryo's cells, a gene within the short arm of the chromosome called SRY will turn on, initiating a chemical chain reaction that will turn on other genes and ...