Jenna Is Trying to Construct a Pedigree for the Occurrence

question 58

Multiple Choice

Jenna is trying to construct a pedigree for the occurrence of red hair in her family. She has two sisters (one older and one younger) , and Jenna is the only one in her family who has red hair. What will be components of Jenna's pedigree?

• A)a line connecting her mother and father, and three colored squares representing Jenna and her sisters
• B)one colored circle, three empty circles, and one empty square all in a line, representing Jenna, her mother and sisters, and her father, respectively
• C)a line connecting her mother and father, and three colored circles representing Jenna and her sisters
• D)a line connecting her mother and father, and a colored circled on the left side beneath Jenna's parents, representing her youngest sister
• E)a line connecting her mother and father, a colored circle representing Jenna, and two empty circles representing her sisters

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Definitions:

Bone Remodeling

The continuous turnover process of bone tissue that involves bone formation and resorption.

Arthritis

A form of joint disorder that involves inflammation of one or more joints, causing pain and stiffness.

Lubricating Mucus

A thick, slippery secretion produced by mucous membranes and glands, helping to reduce friction and protect surfaces.

Friction

The resistance that one surface or object encounters when moving over another, a fundamental force important for various physical processes.