Essential Genetics 6th Edition by Daniel Hartl

Exercise 21

You are studying sprint speed in lizards. You raise two generations of lizards in the laboratory, measuring speed on a track at age 1 year in both parents and offspring. The resulting data consist of 10 pairs of midparent-offspring values. The midparent speed is the average of the parental speeds.

(c) From the scatterplot, would you guess that the trait of sprint speed has high or low heritability in these lizards?