Gene pool

Definition

The gene pool is the complete set of genetic information within all individuals in a population. It includes all alleles for every gene present in that population.

5 Must Know Facts For Your Next Test

1. The size and diversity of a gene pool affect a population's ability to adapt to changing environments.
2. A large gene pool indicates high genetic diversity, which can enhance survival and adaptability.
3. Genetic drift, mutations, migration, and natural selection are factors that can alter the gene pool.
4. A small or shrinking gene pool can lead to inbreeding and increase the risk of genetic disorders.
5. The concept of the gene pool is crucial for understanding evolution and how traits are passed through generations.

Review Questions

• What factors can change the composition of a gene pool?
• How does a large gene pool benefit a population?
• Why is it important to maintain genetic diversity within a population?

Related terms

allele:

A variant form of a gene at a particular locus on a chromosome.

genetic drift:

A mechanism of evolution involving random changes in allele frequencies within a population.

natural selection:

The process where organisms better adapted to their environment tend to survive and produce more offspring.