Question

What is the equation for broad sense heritability, and what types of genetic variation does it encompass?

a) ( h^2 = V_G / V_P ); includes additive, dominant, and epistatic genetic variation.
b) ( h^2 = V_G / V_E ); encompasses only additive genetic variation.
c) ( h^2 = V_P / V_G ); involves epigenetic and chromosomal genetic variation.
d) ( h^2 = V_E / V_G ); accounts for environmental and genetic variation.

Answer 1

The equation for broad sense heritability is h² = V_G / V_P and includes additive, dominant, and epistatic genetic variation, reflecting the genetic contribution to phenotypic variation in a population.

Step-by-step explanation:

The equation for broad sense heritability is h² = V_G / V_P, which encompasses all types of genetic variation including additive, dominant, and epistatic genetic variation. Broad sense heritability measures the proportion of phenotypic variance in a population that is due to genetic differences among individuals. The numerator, V_G, represents the total genetic variance, while the denominator, V_P, stands for the total phenotypic variance. This concept is crucial as it relates to the potential response of a trait to selection. The greater the heritability of a trait, the more likely it is to be influenced by selective pressures and evolutionary forces.