| Genetic Diversity |
Article Index for Genetic |
Website Links For Genetic |
Information AboutGenetic Diversity |
| CATEGORIES ABOUT GENETIC DIVERSITY | |
| biodiversity | |
| population genetics | |
|
The academic field of Population Genetics includes several hypotheses regarding genetic diversity. The Neutral Theory Of Evolution proposes that diversity is the result of the accumulation of neutral substitutions. Diversifying Selection is the hypothesis that to subpopulations of a species live in different environments that select for different alleles at a particular locus. This may occur, for instance, if a species has a large range relative to the mobility of individuals within it. Frequency-dependent Selection is the hypothesis that as alleles become more common, they become less fit. This is often invoked in host-pathogen interactions, where a high frequency of a defensive allele among the host means that it is more likely that a pathogen will spread if is able to overcome that allele. SEE ALSO |
|
|