Question

< Question 5 of 14 > Alpine avens (Geum rossii) lives on the alpine tundra of the Rocky Mountains. Plants that live in this kind of environment tend to have small leaves and short stems relative to their large root systems. Suppose that an ecologist measured the root biomass of parents and offspring in a population of alpine avens. The graph shows the ecologist's data. y = 0.72x + 0.53 Weight of roots of offspring (mg) 100 150 200 250 Weight of roots of parents (mg) Select the statements supported by the data. The narrow sense heritability, ha, of root biomass approximately equals 0.28. O Offspring do not resemble their parents more than would be expected by chance. As root biomass increases in the parents, it decreases in the offspring. More of the variation in root biomass is related to genetic factors than to environmental factors. O The narrow sense heritability, h², of root biomass approximately equals 0.72.

Answer 1

The statements supported by the data :
More of the variation in root biomass is related to genetic factors than to environmental factors.
Heritability is parameter for population.The narrow sense heritability is a ratio of additive genetic variance to the total variance in phenotype.Here,the root biomass variation is more dependent on genetic factors.