How many human genetic diseases are there?

Which of the following is true about the biomechanical properties of a ligament (or tendon) if the width of the ligament is doubled?

a. Greater elongation before failure b. Less elongation before failure c. Increased strength before failure d. Decreased strength before failure

Instead of being the actual administered compounds, teratogens may be:

A) Malformations B) Genetic disorders C) Metabolites D) Exposures