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Population genetics is a subfield of genetics that deals with genetic differences within and among populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as adaptation, speciation, and population structure.
Sep 22, 2006 · Population genetics is a field of biology that studies the genetic composition of biological populations, and the changes in genetic composition that result from the operation of various factors, including natural selection.
Population genetics can be broadly and simply defined as the branch of genetics dealing with the description of observed or inferred heritable features in populations through space and time. This definition albeit comprehensive conceals a very deep formal heterogeneity.
Populations with two or more variations of particular characteristics are called polymorphic. The distribution of phenotypes among individuals, known as the population variation, is influenced by a number of factors, including the population’s genetic structure and the environment (Figure 22.2.1 22.2. 1 ).
Jul 18, 2020 · In the future, improvement of patient care in more diseases can be achieved by the combination of population genetics, epidemiological studies, and molecular genetics studies. With the huge amount of genomic information currently available, it is challenging to link genotypes to phenotypes, predict regulatory functions, and classify mutant types.
- Atsuko Okazaki, Atsuko Okazaki, Satoru Yamazaki, Ituro Inoue, Jurg Ott
- 2021
Population genetics is the science of genetic variation within populations of organisms. Population genetics focuses on the origin, amount, frequency, distribution in space and time, and phenotypic significance of that genetic variation, and with the microevolutionary forces that influence the fate of genetic variation in reproducing populations.
Population Genetics – Introductory Biology: Evolutionary and Ecological Perspectives. 28 Population Genetics. By the end of this section, you will be able to do the following: Describe the different types of variation in a population. Explain why only natural selection can act upon heritable variation.
