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What is yy chromosome?

Asked By: Asmee Varghese

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Studied Politics of India & Political History of India Internal Customers Sacramento United States

Males with XYY syndrome have 47 chromosomes because of the extra Y chromosome. XYY syndrome is a rare chromosomal birth defect that occurs when a male infant is born with an extra Y chromosome. XYY syndrome is a genetic condition in which a male has an extra Y chromosome. 47,XYY syndrome is characterized by an extra copy of the Y chromosome in each. The Y chromosome is one of two sex chromosomes in mammals, including humans, and many other animals. In the 1960s and 1970s geneticists pursued a fascinating hypothesis: Is it possible that a man could be born with a criminal gene? For more:.


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