Dosage compensation of the X chromosome in Drosophila melanogaster is based on ___ inactivation of the X chromosome in males increased transcription of the X-linked genes in males inactivation of the X chromosome in females increased transcription of the X-linked genes in females
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Determine dosage compensation of chromosome Drosophila melanogaster. Show more…
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Adi S.
Dosage compensation in mammals normally takes place in males but not females. causes the Y chromosome to become genetically active. takes place in humans so that the same X chromosome is inactive in all of the cells of a female. results in genetically turning off one of the two X chromosomes in female mammals. causes each X chromosome in females to be 50% active.
Madhur L.
Female humans who are heterozygous for X-linked recessive genes sometimes exhibit mild expression of the trait. However, such mild expression of X-linked traits in females who are heterozygous for X-linked alleles is not seen in Dmsophila. What might cause this difference in the expression of X-linked genes in female humans and female Drosophila? (Hint: In Drosophila, dosage compensation is accomplished by doubling the activity of genes on the X chromosome of males.)
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