iGenetics 3rd Edition by Peter Russell

Exercise 1

Given the following sets of 30 phenotypic measurements for different traits, decide whether each trait is qualitative or quantitative and explain your answer.
a. Trait 1: 38.9, 47.0, 53.1, 39.1, 62.8, 46.8, 57.5, 54.9, 48.9, 56.3, 52.5, 60.8, 46.7, 48.0, 52.3, 40.7, 50.4, 51.0, 46.5, 47.9, 55.4, 53.1, 58.5, 51.1, 60.2, 50.6, 48.6, 52.5, 54.5, 51.4, 48.1, 49.5, 55.8, 52.9, 42.9, 44.4, 56.4, 38.9, 42.2, 42.2
b. Trait 2: 25.7, 8.8, 11.2, 5.7, 20.6, 34.3, 13.0, 28.8, 20.5, 24.1, 21.2, 14.3, 17.7, 18.7, 24.3, 30.2, 20.2, 25.1, 30.6, 21.2, 31.2, 23.0, 16.9, 10.5, 14.1, 10.2, 30.5, 22.5, 34.1, 10.6, 19.5, 21.0, 20.9, 27.7, 33.0, 7.7, 20.1, 16.9, 18.8, 15.7
c. Trait 3: 31.1, 22.0, 28.1, 14.1, 43.4, 52.8, 32.5, 39.0, 43.1, 52.2, 45.1, 35.8, 36.4, 38.7, 52.8, 42.6, 42.6, 54.8, 43.4, 45.1, 45.1, 49.5, 34.2, 26.1, 35.2, 25.6, 43.1, 48.3, 52.2, 26.4, 40.9, 44.5, 44.3, 36.4, 49.5, 19.4, 42.4, 34.2, 39.0, 31.1