Albinism occurs when cells cannot chemically synthesize pigment molecules. This occurs because the genes encoding the proteins that catalyze those synthesis reactions have sustained mutations. Based on this description, briefly explain whether you think mutations that cause albinism would be more likely to be dominant or recessive.

Albinism occurs when cells cannot chemically synthesize pigment molecules. This occurs because the genes encoding the proteins that catalyze those synthesis reactions have sustained mutations. Based on this description, briefly explain whether you think mutations that cause albinism would be more likely to be dominant or recessive.

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Description: Albinism occurs when cells cannot chemically synthesize pigment molecules. This occurs because the genes encoding the proteins that catalyze those synthesis reactions have sustained mutations. Based on this description, briefly explain whether you th

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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Junctional epidermolysis bullosa (JEB) is a severe skin disorder that results in blisters over the entire body. The disorder is caused by autosomal recessive mutations at any one of three loci that help to encode laminin 5, a major component in the dermal–epidermal basement membrane. Leena Pulkkinen and colleagues described a male newborn who was born with JEB and died at 2 months of age (L. Pulkkinen et al. 1997. American Journal of Human Genetics 61:611–619); the child had healthy, unrelated parents. Chromosome analysis revealed that the infant had 46 normal-appearing chromosomes. Analysis of DNA showed that his mother was heterozygous for a JEB-causing allele at the LAMB3 locus, which is on chromosome 1. The father had two normal alleles at this locus. DNA fingerprinting demonstrated that the male assumed to be the father had, in fact, conceived the child. Q. How might you go about proving your explanation? Assume that a number of genetic markers are available for each chromosome.