Search Results for: allele frequency
Genetic drift
Genetic Drift Definition What is genetic drift in simple terms? The simple definition of genetic drift ( also referred to... 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
Multiple alleles
Alleles are the pairs of genes occupying a specific spot called locus on a chromosome. Typically, there are only two alleles... 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
Phenotypic ratio
Phenotypic Ratio Definition How would one define phenotypic ratio? The correlation between the amount of offspring that... Read More
Darwinian fitness
Darwinian Fitness Definition Darwinian fitness refers to the measure of an individual organism's or genotype's reproductive... Read More
Pleiotropy
Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... 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
Neutral mutation
Neutral Mutation Definition What is a neutral mutation? Neutral mutations are the alterations in the DNA that are... Read More
Examples of Natural Selection
Reviewed by: Mary Anne Clark, Ph.D. Darwin's Finches Darwin's finches are an excellent example of the way in... 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
Disruptive Selection
An evolutionary process known as disruptive selection (or disruptive natural selection) causes a population to become... 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
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
Polygenic trait
Polygenic Trait Definition Polygenic trait refers to a trait that is controlled by multiple non-allelic genes. These genes... Read More
Polyploidy
Reviewed by: Mary Anne Clark, Ph.D. Polyploidy Polyploidy is defined as the state of being polyploid, which... Read More
Equilibrium
Equilibrium Definition In Biology Equilibrium refers to the state of balance and stability. In biology, equilibrium is... Read More
Neutral theory of molecular evolution
Definition noun A theory stating that evolutionary changes particularly at the molecular level arise from genetic drift of... Read More