Barbara and John have two daughters (Madison and Kelly), and one son (Mike), all have normal red blood cells. Their other son (Chase) has been diagnosed with sickle cell. Barbara recently gave birth to another son (Barry) who also has been diagnosed with sickle cell. Barbara’s mother (Beth) has sickle cell, but her father (Jason), three sisters (Emma, Lori, and Allison), and two brothers (Emmitt and Will) are all normal. John’s father (Jim), mother (Brenda), and brother (Parker) are all normal, but his sister (Demi) has sickle cell. John’s maternal grandparents (Bill and Lonna) are carriers. Barbara’s paternal grandparents (Kevin and Martha) are all normal.  make an pedigree

Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Chapter11: The Basic Principles Of Heredity
Section: Chapter Questions
Problem 9TYU: Mr. and Mrs. Smith are concerned because their own blood types are A and B, respectively, but their...
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Barbara and John have two daughters (Madison and Kelly), and one son (Mike), all have normal red blood cells. Their other son (Chase) has been diagnosed with sickle cell. Barbara recently gave birth to another son (Barry) who also has been diagnosed with sickle cell. Barbara’s mother (Beth) has sickle cell, but her father (Jason), three sisters (Emma, Lori, and Allison), and two brothers (Emmitt and Will) are all normal. John’s father (Jim), mother (Brenda), and brother (Parker) are all normal, but his sister (Demi) has sickle cell. John’s maternal grandparents (Bill and Lonna) are carriers. Barbara’s paternal grandparents (Kevin and Martha) are all normal. 

make an pedigree 

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