Hemophilia is an X-linked recessive disorder and blood type is autosomal.  If two healthy parents, one of which is blood type A and the other blood type B,  produce a son who has hemophilia and is type O, what is the probability that their next child will be a son with hemophilia and blood type B?     1/2     3/16     1/4     1/8     1/16

Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter8: Patterns Of Inheritance
Section: Chapter Questions
Problem 18CTQ: Could an individual with blood type O (genotype ii) be a legitimate child of parents in which one...
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Hemophilia is an X-linked recessive disorder and blood type is autosomal.  If two healthy parents, one of which is blood type A and the other blood type B,  produce a son who has hemophilia and is type O, what is the probability that their next child will be a son with hemophilia and blood type B?

   

1/2

   

3/16

   

1/4

   

1/8

   

1/16

Expert Solution
Step 1

Introduction 

X linked inheritance is based on the sex chromosome (X chromosome). This inheritance doesn’t follow Mendelian inheritance pattern. In the X linked inheritance males are more affected than females. As the recessive traits also gets expressed in male as they are hemizygous and contains one X chromosome only.

Example: Fragile X syndrome, Haemophilia A and B, Colour Blindness etc.

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