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Complex Traits

Author(s): Nancy Moreno, PhD.

Breeding for Speed: Benefits vs. Risks

Activity 6: Slides 35–38

Procedure (cont.)

2. Explain to students that bully whippets have a mutation in the gene for a muscle protein (myostatin). Dogs with one copy of the mutation run faster. Dogs with two copies of the mutation have an unusual body shape, bulky muscles, an overbite, shorter legs and thicker tails. These dogs are not valuable as racing or as show dogs. Thus, one copy of the mutated allele produces dogs with an advantage in racing. However, dogs with two copies are undesirable as racing or show dogs. 

Funded by the following grant(s)

Science Education Partnership Award, NIH

Gene U: Inquiry-based Genomics Learning Experiences for Teachers and Students
Grant Number: 5R25OD011134

Robert Wood Johnson Foundation

Using Learning Technology to Build Human Capital
Grant Number: 57363