33 results found

Search Results for: gene frequency

Genetic drift

Genetic Drift Definition What is genetic drift in simple terms? The simple definition of genetic drift ( also referred to... Read More

Pleiotropy

Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More

Gene frequency

Definition noun, plural: gene frequencies The proportion of gene to its allele in an interbreeding... Read More

Sympatric speciation

Speciation is a process of evolution through which two different existing populations evolve and a distinct species form. It... Read More

Gene pool

Definition noun, plural: gene pools (population genetics) The total number of genes of every individual in an interbreeding... Read More

Genetic diversity

Genetic Diversity Definition Each species is composed of individuals with their own set of genes. A gene is the inheritance... Read More

Polymorphism

Polymorphism Definition The occurrence of two or more different forms or morphs in the population of a species is referred... Read More

Allele frequency

Definition noun, plural: allele frequencies The frequency of an allele relative to that of other alleles of the same gene in... Read More

Gene amplification

Definition noun, plural: gene amplifications The process of duplicating a particular gene, causing the gene to increase in... Read More

Gene flow

Definition noun The movement and exchange of genes or alleles from one population of species to another Supplement Gene flow... Read More

Mutation

Mutation is a permanent, heritable change in the nucleotide sequence or the process by which such a change occurs in a gene... Read More

Evolution

Reviewed by: Mary Anne Clark, PhD Evolution Definition Evolution (evo‧lu‧tion, ˈɛvəluːʃ(ə)n) is... Read More

Phenotype

Phenotype refers to the observable characteristics of an organism as a multifactorial consequence of genetic traits and... Read More

Mutagen

Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

Genetic equilibrium

Definition noun A condition where a gene pool is not changing in frequency because the evolutionary forces acting upon the... Read More

Darwinian fitness

Definition noun A relative measure of reproductive success of an organism in passing its genes to the next generation's gene... Read More

Polygenic trait

Polygenic trait definition Polygenic trait refers to a trait that is controlled by multiple non-allelic genes. These genes... Read More

Hardy-Weinberg principle

Definition noun A principle stating that both allele and genotype frequencies in a randomly-mating population remain... Read More

Hardy-Weinberg law

Definition noun A principle stating that both allele and genotype frequencies in a randomly-mating population remain... Read More

Hardy-Weinberg equilibrium

Definition noun A principle stating that both allele and genotype frequencies in a randomly-mating population remain... Read More

Anagenesis

Definition noun (1) (physiology) The regeneration of tissue. (2) (evolution) An evolutionary pattern resulting in linear... Read More

Amplification

Definition noun (1) The act or result of increasing in size or effect. (2) An increase in the frequency of a gene or... Read More

Indicator Species and Endangered Species

Indicator Species Certain species are capable of expressing characteristics that can indicate the state of the ecosystem... Read More

Genetic map

Definition noun (1) A list of ordered genetic loci for a particular genome. (2) A map of the relative positions of genetic... Read More

Sonoporation

Definition noun A mechanical method of delivering molecules into the cell using sound, e.g. ultrasonic... Read More

Penetrance

Definition noun (genetics) The frequency or rate of occurrence, typically in percentage, of a particular trait or condition... Read More

Plant Water Regulation

A plant requires water as an essential ingredient of photolysis, the photochemical stage of photosynthesis where water is... Read More

Fitness

Definition noun (1) (biology) A biological condition in which a competing variant is increasing in frequency relative to... Read More

Positive feedback

Positive Feedback Definition Each mechanism of the body like temperature, blood pressure, and levels of specific nutrients... Read More

Beginning Perl for Bioinformatics by J. Tisdall

Beginning Perl for Bioinformatics      ... Read More

Equilibrium

Definition noun, plural: equilibriums or equilibria (1) The condition in which all acting influences are balanced or... Read More