Reciprocal Crosses for Autosomal Recessive Inheritance mutant female X wild-type male wild-type female X mutant male X AA (genotype) P: AA X a a (genotype) (genotype) (genotype) Genotypes & Ratios: Phenotypes & Ratios: Genotypes & Ratios: Phenotypes & Ratios: F,: F, intercross: F, intercross: X (genotype) (genotype) (genotype) (genotype) Genotypes & Ratios: Phenotypes & Ratios: Genotypes & Ratios: Phenotypes & Ratios:

Reciprocal Crosses for Autosomal Recessive Inheritance mutant female X wild-type male wild-type female X mutant male X AA (genotype) P: AA X a a (genotype) (genotype) (genotype) Genotypes & Ratios: Phenotypes & Ratios: Genotypes & Ratios: Phenotypes & Ratios: F,: F, intercross: F, intercross: X (genotype) (genotype) (genotype) (genotype) Genotypes & Ratios: Phenotypes & Ratios: Genotypes & Ratios: Phenotypes & Ratios:

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter4: Pedigree Analysis In Human Genetics

Section: Chapter Questions

Problem 5QP: Analysis of Autosomal Recessive and Dominant Traits a. What pattern of inheritance is suggested by...

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Analysis of X-Linked Dominant and Recessive Traits Suppose a couple, both phenotypically normal, have two children: one unaffected daughter and one son affected with a genetic disorder. The phenotype ratio is 1:1, making it difficult to determine whether the trait is autosomal or X-linked. With your knowledge of genetics, what are the genotypes of the parents and children in the autosomal case? In the X-linked case?
Variations on a Theme by Mendel Pea plants usually have white or red flowers. A strange pea-plant variant is found that has pink flowers. A selfcross of this plant yields the following phenotypes: 30 red flowers 62 pink flowers 33 white flowers What are the genotypes of the parents? What is the genotype of the progeny with red flowers?
Analysis of Autosomal Recessive and Dominant Traits In the following pedigree, assume that the father of the proband is homozygous for a rare trait. What pattern of inheritance is consistent with this pedigree? In particular, explain the phenotype of the proband.
Analysis of Autosomal Recessive and Dominant Traits a. What pattern of inheritance is suggested by the following pedigree? b. For genotype assignment, assume that the pedigree is for an autosomal dominant trait and that the affected male in the first generation is heterozygous. Assign genotypes to all other individuals in the pedigree.
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More Crosses with Pea Plants: The Principle of Independent Assortment Determine the possible genotypes of the following parents by analyzing the phenotypes of their children. In this case, we will assume that brown eyes (B) is dominant to blue (b) and that right-handedness (R) is dominant to left-handedness (r). a. Parents: brown eyes, right-handed brown eyes, right-handed Offspring: 3/4 brown eyes, right-handed 1/4 blue eyes, right-handed b. Parents: brown eyes, right-handed blue eyes, right-handed Offspring: 6/16 blue eyes, right-handed 2/16 blue eyes, left-handed 6/16 brown eyes, right-handed 2/16 brown eyes, left-handed c. Parents: brown eyes, right-handed blue eyes, left-handed Offspring: 1/4 brown eyes, right-handed 1/4 brown eyes, left-handed 1/4 blue eyes, right-handed 1/4 blue eyes, left-handed
Inheritance regarding two un+linked genes, two loci with separate alleles from the mother, and two alleles from the father that results in an organism's genotype for those specific genes. A hereditary disease exists among humans called phenylketonuria, which is an autosomal recessive mutant allele. The father is homozygous for this condition where the mother is a carrier. The father is also bow-legged and heterozygote for this trait where the mother has straight legs. a.) show parents genotype for these two traits b.) Their first child was a daughter with straight legs and phenylketonuria. What was the probability for that to occur? c.) What was the probability that her future siblings were to be a brother and a sister (no particular order of sex) who are carriers of the disease and the brother to be bow-legged whilst the sister having straight legs? d.) If adding the blood types of the parents where the father is AB and the mother to be A. What is the probability for this couple to…
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Ch. 14-4 Duchenne muscular dystrophy, which is inherited in an X-linked recessive pattern, nearly always occurs in males. Explain why.