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Name: Barbara
Status: Other
Grade:  Other
Location: KY
Country: United States
Date: April 2005

Is it true that some males can only produce male offspring due to some abnormality of chromosomes?

So far as I know, this doesn't occur naturally, but there are ways to inactivate the X or Y chromosome by genetic manipulation in the lab to produce males that only produce female offspring if the Y is inactivated or only males if the X chromosome is inactivated.

Ron Baker,Ph.D.

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