⏰ when
When was the Y chromosome first linked to male sex determination?
Quick Answer
The Y chromosome was linked to male sex determination in the 1950s and 1960s, with the key gene SRY identified in 1990. That discovery explained a central part of human sex development.
The Full Story
Researchers established in the mid-20th century that the Y chromosome plays a key role in male sex determination. The crucial SRY gene, which triggers testes development in embryos, was identified in 1990. This finding clarified one of the most important questions in human developmental genetics. It also showed that sex determination depends on specific genes rather than chromosome number alone.
Key Facts
1.SRY identified in 1990
2.Y chromosome linked to male development in the 20th century
3.Key gene in sex determination
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Suggested video title for this topic:
"The gene that helps determine biological sex"
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