A mouse population between weeks 3 and 5 has an average...

Name: Problem 8, Chapter 15: Essential Genetics: A Genomic Perspective: Study Guide and Solution Manual
Uploaded: 2020-07-15T16:31:48-08:00
Duration: 1 min 38 s
Channel: Jessica Wooten
Description: A mouse population between weeks 3 and 5 has an average weight gain of 5 grams, and the narrow-sense heritability of the weight gain between 3 and 5 weeks is 25 percent. What average weight gain would be expected among the offspring of parents whose average gain was 15 grams?

A mouse population between weeks 3 and 5 has an average weight gain of 5 grams, and the narrow-sense heritability of the weight gain between 3 and 5 weeks is 25 percent. What average weight gain would be expected among the offspring of parents whose average gain was 15 grams?

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Narrow-Sense Heritability

Narrow-sense heritability is a measure of the proportion of the phenotypic variance in a trait that is attributable to additive genetic variance. It is a critical concept in quantitative genetics because it determines how effectively a trait can be passed from parent to offspring, helping to predict the response to selection in a population.

Response to Selection

The response to selection is the change in the mean phenotype of a population from one generation to the next as a result of selection. This concept is often quantified using the breeder's equation (R = h²S), which links the genetic contribution (heritability) to the phenotypic difference between selected parents and the overall population.

Selection Differential

The selection differential is the difference between the mean phenotype of the individuals selected for breeding and the mean phenotype of the entire population. It represents the strength of selection applied, and when multiplied by the narrow-sense heritability, it predicts the average change in the trait in the offspring generation.

Transcript

Please give Ace some feedback