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Building Better Bones Tiffany, shown in FIGURE 35.10 , was born with multiple fractures in her arms and legs. By age six, she had undergone surgery to correct more than 200 bone fractures. Her fragile, easily broken bones are .symptoms or osteogenesis imperfecta (OI), a genetic disorder caused by a mutation in a gene for collagen. As bones develop, collagen forms a scaffold for deposition of mineralized bone tissue. The scaffold forms improperly in children with OI. FIGURE 35.10 also shows the results of a test of a new drug. Treated children, all less than two years old were compared to similarly affected children of the same age who were not treated with the drug. FIGURE 3.5.10 A clinical trial of a drug treatment for osteogenesis imperfect (OI) . OI affects the child shown at night. Nine children with received the drug. Six others were untreated Controls. Surface area of certain vertebrae were measured before and after treatment. Fractures occurring during the 12 months of the trial were also recorded. How many of the untreated children showed an increase in vertebral area?

BuyFind

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
BuyFind

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

Solutions

Chapter
Section
Chapter 35, Problem 2DAA
Textbook Problem

Building Better Bones Tiffany, shown in FIGURE 35.10, was born with multiple fractures in her arms and legs. By age six, she had undergone surgery to correct more than 200 bone fractures. Her fragile, easily broken bones are .symptoms or osteogenesis imperfecta (OI), a genetic disorder caused by a mutation in a gene for collagen. As bones develop, collagen forms a scaffold for deposition of mineralized bone tissue. The scaffold forms improperly in children with OI. FIGURE 35.10 also shows the results of a test of a new drug. Treated children, all less than two years old were compared to similarly affected children of the same age who were not treated with the drug.

Chapter 35, Problem 2DAA, Building Better Bones Tiffany, shown in FIGURE 35.10, was born with multiple fractures in her arms , example  1

Chapter 35, Problem 2DAA, Building Better Bones Tiffany, shown in FIGURE 35.10, was born with multiple fractures in her arms , example  2

Chapter 35, Problem 2DAA, Building Better Bones Tiffany, shown in FIGURE 35.10, was born with multiple fractures in her arms , example  3

FIGURE 3.5.10 A clinical trial of a drug treatment for osteogenesis imperfect (OI). OI affects the child shown at night. Nine children with received the drug. Six others were untreated Controls. Surface area of certain vertebrae were measured before and after treatment. Fractures occurring during the 12 months of the trial were also recorded.

How many of the untreated children showed an increase in vertebral area?

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