A man and a woman have two children.  One of the two children is a boy with sickle-cell disease.  The other child is a girl without sickle-cell disease.  Neither of the parents are affected.  How would this family be represented in a pedigree?

Human Biology (MindTap Course List)
11th Edition
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cecie Starr, Beverly McMillan
Chapter20: Chromosomes And Human Genetics
Section: Chapter Questions
Problem 7CT: The following pedigree shows the pattern of inheritance of red-green color blindness in a family....
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A man and a woman have two children.  One of the two children is a boy with sickle-cell disease.  The other child is a girl without sickle-cell disease.  Neither of the parents are affected.  How would this family be represented in a pedigree?  

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A. Father = half shaded square, Mother = half shaded circle, Son = fully shaded square, Daughter = circle with a question mark
 
B. Father = square with no shading, Mother = half shaded circle, Son = fully shaded square, Daugther = circle with a question mark
 
C. Father = half shaded square, Mother = half shaded circle, Son = fully shaded square, Daughter = half shaded circle
 
D. Father = square with no shading, Mother = half shaded circle, Son = half shaded square, Daughter = circle with no shading
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