Genetics and Evolutionary Biology

Gene-environment interaction is the study of how genetic variation affects an organism's response to its environment.

A person with a genetic predisposition to alcoholism is more likely to develop the disorder if they drink alcohol, a person with a genetic predisposition to obesity is more likely to become obese if they eat a high-fat diet, and a person with a genetic predisposition to cancer is more likely to develop the disease if they are exposed to carcinogens are all examples of gene-environment interactions.

Behavioral Genetics is the study of how genes and the environment interact to influence an organism's behavior.

Population Genetics is the study of how genetic variation affects an organism's population.

A study of how genetic variation affects a population's risk of developing a disease, a study of how genetic variation affects a population's adaptation to a changing environment, and a study of how genetic variation affects a population's size are all examples of population genetic studies.

Genetic drift is the random change in allele frequencies in a population over time, due to chance events such as the death of individuals or the migration of individuals into or out of the population.

Natural selection is the process by which individuals with certain traits are more likely to survive and reproduce than individuals with other traits. This can lead to changes in the allele frequencies in a population over time.

Gene flow is the movement of genes from one population to another. This can occur through migration, interbreeding, or other means.

Mutation is a change in the DNA sequence of an organism. Mutations can be caused by a variety of factors, including exposure to radiation or chemicals, errors in DNA replication, and transposable elements.

Genetic diversity is the genetic variation that exists within a population. This variation can be measured by looking at the number of different alleles that exist at a particular locus, or by looking at the overall genetic similarity between individuals in a population.

Human population genetics is the study of the genetic variation that exists within human populations. This field of study is concerned with understanding the patterns of genetic variation in human populations, and how these patterns have been shaped by evolutionary forces such as natural selection, genetic drift, and gene flow.

Population structure is the genetic variation that exists between different populations of a species. This variation can be measured by looking at the number of different alleles that exist at a particular locus, or by looking at the overall genetic similarity between individuals in different populations.

Genetic assimilation is the process by which a population becomes more genetically similar to another population. This can occur through gene flow, natural selection, or other mechanisms.

Genetic divergence is the process by which a population becomes more genetically different from another population. This can occur through genetic drift, natural selection, or other mechanisms.

Population genomics is the study of the genetic relationships between different populations of a species. This field of study is concerned with understanding the patterns of genetic variation in different populations, and how these patterns have been shaped by evolutionary forces such as natural selection, genetic drift, and gene flow.