(2)What type of in inheritance pattern is shown in the pedigree above

Human Heredity: Principles and Issues (MindTap Course List)
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ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter4: Pedigree Analysis In Human Genetics
Section: Chapter Questions
Problem 20QP: Analysis of X-Linked Dominant and Recessive Traits The following is a pedigree for a common genetic...
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Genetics Question 2

(2)What type of in inheritance pattern is shown in the pedigree above
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Transcribed Image Text:(2)What type of in inheritance pattern is shown in the pedigree above ठे
Pedigree Guidelines:
Can an individual have it without either of their parents having it?
It can not be Autosomal dominant or Sex linked dominant
Does a female have it without her father having it?
It can not be sex linked recessive.
Do both parents have it, but not all children?
It can not be autosomal recessive and it can not be sex linked recessive
Does it appear evenly in both sexes?
It is unlikely to be sex linked recessive
Do only males have it? (with more than 5 males)
It is unlikely to be autosomal recessive
If every individual who has the trait has a parent who has the trait, the trait is dominant
Penetrance is 100%
Note that these rules are not always true in real life, but they make pedigree problems more straight
forward.
Transcribed Image Text:Pedigree Guidelines: Can an individual have it without either of their parents having it? It can not be Autosomal dominant or Sex linked dominant Does a female have it without her father having it? It can not be sex linked recessive. Do both parents have it, but not all children? It can not be autosomal recessive and it can not be sex linked recessive Does it appear evenly in both sexes? It is unlikely to be sex linked recessive Do only males have it? (with more than 5 males) It is unlikely to be autosomal recessive If every individual who has the trait has a parent who has the trait, the trait is dominant Penetrance is 100% Note that these rules are not always true in real life, but they make pedigree problems more straight forward.
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