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

Question

Quizplus · Accepted Answer

Since Jenna is the only one in her family with red hair, she would be represented by a colored circle in a pedigree. Her parents would be connected by a line, and her sisters would be represented by empty circles. Therefore, choice E is the best answer as it accurately represents Jenna's family structure and the occurrence of red hair in her family.

Jenna Is Trying to Construct a Pedigree for the Occurrence