The narrow-sense heritability of ear length in Reno rabbits is 0.4. Thephenotypic variance (VP) is 0.8, and the environmental variance (VE) is0.2. What is the additive genetic variance (VA) for ear length in theserabbits?

The narrow-sense heritability of ear length in Reno rabbits is 0.4. Thephenotypic variance (VP) is 0.8, and the environmental variance (VE) is0.2. What is the additive genetic variance (VA) for ear length in theserabbits?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter18: Genetics Of Behavior

Section: Chapter Questions

Problem 1QP

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Concept explainers

Genetic Variation

Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.

Quantitative Genetics

Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.

Question

The narrow-sense heritability of ear length in Reno rabbits is 0.4. The
phenotypic variance (V_P) is 0.8, and the environmental variance (V_E) is
0.2. What is the additive genetic variance (V_A) for ear length in these
rabbits?

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