Biological Science 6th Edition by Scott Freeman,Kim Quillin,Lizabeth Allison,Michael Black,Greg Podgorski,Emily Taylor,Jeff Carmichael

Exercise 3

Once the gene that causes Huntington's disease was found, researchers introduced the defective allele into mice to create an animal model of the disease. Why was this model valuable?
A) It allowed the testing of potential drug therapies without endangering human patients.
B) It allowed the study of how the gene is regulated.
C) It allowed the production of large quantities of the huntingtin protein.
D) It allowed the study of how the gene was transmitted from parents to offspring.