The diagram above shows the neural structures that
control and coordinate the beating of the heart. How
would the cardiac cycle be affected if neural signals
were blocked within the Purkinje fibers?

- The atria would contract first, followed by the ventricles.
- The atria and ventricles would contract at the same time.
- Only the left atrium would contract.
- The ventricles would not contract.

Use the above pedigree for questions 1,2, and 3 1. what kind of genetic disorder is represented in the pedigree? a. recessive b. dominate refer to the pedigree in question 1. 2. is the mutated gene in this disorder located on a sex chromosome (x or y) or an autosome? a. sex chromosome b. autosome refer to the pedigree in question 1. 3. which generation has individuals that you are certain are heterozygous for the mutated gene? a. generation 1 b. generation 2 c. generation 3