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ashlee123 ashlee123
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6 years ago
What is dosage compensation and why is it necessary in placental mammals?
 
  What will be an ideal response?
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6 years ago
Ans: Dosage compensation balances the expression of genes that are found in different copy numbers in different individuals of the same species. In placental mammals, females have two copies of all X chromosome genes, while males have only one copy. The dosage compensation mechanism is X inactivation in females; one of the two X chromosomes in female cells is inactivated, so X chromosome genes are equally expressed in males and females.
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