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31 October, 15:30

How is the effective dosage of x-linked gene products balanced in placental mammals between females that carry two x chromosomes and males that carry only a single x chromosome?

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  1. 31 October, 15:59
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    According to the Lyon's hypothesis, the dosage compensation in the placental mammals takes place by inactivation of one of the X chromosome in the female somatic cells. The dosage compensation is a process, by which the expression of the chromosomes is balanced between the sexes.

    The inactivated X chromosome causes the formation of the barr bodies in females.
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