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A Barr body is the inactivated X chromosome that is usually found in the nuclei of female somatic cells. It can also occur in males when there is an abnormality and the male is XXY instead of the normal XY, a condition known as Klinefelter's syndrome.
As the cells develop, the inactivated X chromosome is compacted into an inert bundle called a Barr body. Since males have one X and one Y, no inactivation takes place, so there is, in general, no Barr body found in the nucleus of somatic cells in male mammals.8 people found this useful.ince males have one X and one Y, no inactivation takes place, so there is, in general, no Barr body found in the nucleus of somatic cells in male mammals.