Two Pure Lines of Plants Had Mean Heights of 26

Multiple Choice

Two pure lines of plants had mean heights of 26 cm and 42 cm,respectively.The F₁ had a mean of 34 cm and a variance of 20.The F₂ also had a mean of 34 but a variance of 60.The broad-sense heritability (H²) is:

A) 0.13.
B) 0.34.
C) 0.50.
D) 0.67.
E) 0.80 .