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What pattern of inheritance does the traits in the pedigrees follow? Is this an X-linked...

Question:

What pattern of inheritance does the traits in the pedigrees follow? Is this an X-linked recessive or dominant, autosomal recessive or autosomal dominant traits? Explain by giving the genotypes of persons that support your assumptions. Could these pedigrees correspond to more than one inheritance pattern?

a)

b)

Pedigrees:

Pedigrees are used to study the patterns of inheritance in humans. Sometimes the mode of inheritance is obvious from studying a small family. In other cases, the pedigree is ambiguous, and data on many families must be collected to drawn conculsions about the mode of inheritance.

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Both of these pedigrees must show an autosomal recessive trait. If the trait were dominant, at least one parent of any affected child must also be...

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Pedigree Analysis in Human Genetics: Tutorial

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Chapter 6 / Lesson 2
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A pedigree is a chart of family history. Pedigree analysis can be an important process in human genetics. In this tutorial, learn how to create a pedigree and understand proband, gender, and phenotype. Explore the roles of family relationships, multiple births, divorce, death, and miscarriages in expanding and finishing a pedigree analysis.


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