Galactosemia is a metabolic condition, caused by a recessive allele, which prevents affected patients from breaking down certain sugars. In infants galactosemia can lead to a toxic build-up of the by- product galactol, but negative effects can be minimized if the condition is identified early and the child is kept on a diet free from lactose or galactose. John and Maggie both know they are carriers of the galactosemia allele. They have just been married and hope to start a large family. If they have four children, what is the chance that none of them will be affected by the disease? (4 points)

Galactosemia is a metabolic condition, caused by a recessive allele, which prevents affected patients from breaking down certain sugars. In infants galactosemia can lead to a toxic build-up of the by- product galactol, but negative effects can be minimized if the condition is identified early and the child is kept on a diet free from lactose or galactose. John and Maggie both know they are carriers of the galactosemia allele. They have just been married and hope to start a large family. If they have four children, what is the chance that none of them will be affected by the disease? (4 points)

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Description: Galactosemia is a metabolic condition, caused by a recessive allele, which prevents affected patientsfrom breaking down certain sugars. In infants galactosemia can lead to a toxic build-up of the by-product galactol, but negative effects can be mini

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter11: Genome Alterations: Mutation And Epigenetics

Section: Chapter Questions

Problem 16QP: Familial retinoblastoma, a rare autosomal dominant defect, arose in a large family that had no prior...

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