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Unit 3 Part 1 - Chapter 15 (Chromosomal Inheritance)

Barr body​? Mosaic?

- In mammalian females, one of the two X chromosomes in each cell is randomly inactivated during embryonic development ​ - The inactive X condenses into a Barr body​ - If a female is heterozygous for a particular gene located on the X chromosome, she will be a mosaic for that character​

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Barr body? Mosaic?

- In mammalian females, one of the two X chromosomes in each cell is randomly inactivated during embryonic development - The inactive X condenses into a Barr body - If a female is heterozygous for a particular gene located on the X chromosome, she will be a mosaic for that character