Evolutionary Analysis (5th Edition)
Evolutionary Analysis (5th Edition)
5th Edition
ISBN: 9780321616678
Author: Jon C. Herron, Scott Freeman
Publisher: PEARSON
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Chapter 5, Problem 1Q

What is the difference between genetic variation, environmental variation, and genotype-by-environment interaction? Give examples of each. Try to think of potential examples not covered in this chapter.

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Summary Introduction

To determine: The differences between genetic variation, environmental variation, and genotype-by-environment interaction.

Introduction: Genes are long thread-like structures that contain coded genetic information in the form of DNA. Deoxyribonucleic acid (DNA) is a double-stranded structure, and it is transferred from one generation to the next generation through successful reproduction.

Explanation of Solution

CriteriaGenetic variationEnvironmental variationGenotype-by-environment interaction
DefinitionThe variations in an individual that occur due to differences in nucleotide sequence present in DNA result in genetic variation.The variations or adaptations that occur in an individual due to changes in the environment or external surroundings are known as environmental variation. This type of variation occurs due to difference in the response of two different genotypes to a common environmental variation.
Expert Solution
Check Mark
Summary Introduction

To determine: An example for genetic variation, environmental variation, and genotype-by-environment interaction.

Explanation of Solution

CriteriaGenetic variationEnvironmental variationGenotype-by-environment interaction
ExampleBlood groupsHair color and length of the hair.Exposure of twins to sunlight resulting in different levels of tanning.

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Genetic Variation and Mutation | 9-1 GCSE Science Biology | OCR, AQA, Edexcel; Author: SnapRevise;https://www.youtube.com/watch?v=bLP8udGGfHU;License: Standard YouTube License, CC-BY