Dictionary > Relative fitness

Relative fitness

Definition
noun
A measure of biological fitness wherein the reproductive rate (of a genotype or a phenotype) is relative to the maximum reproductive rate (of other genotypes or phenotypes) in a given population
Supplement
In biology, Darwinian fitness or simply fitness of a biological trait describes how successful an organism has been at passing on its genes. It is different from physical fitness wherein the latter is concerned about the physical wellbeing of an organism. In Darwinian fitness, it is about the suitability of an organism to reproduce offspring. The more likely that an individual is able to survive and live longer to reproduce, the higher is the fitness of that individual. There are two ways through which fitness can be measured: (1) absolute fitness and (2) relative fitness. Absolute fitness pertains to the fitness of an organism based on the number of offspring that a fit organism would reproduce in its lifetime and that its offspring would reach reproductive age. Relative fitness is a standardized absolute fitness. It is a measure of biological fitness wherein the reproductive rate (of a genotype or a phenotype) is relative to the maximum reproductive rate (of other genotypes or phenotypes) in a given population. It can be measured by absolute fitness divided by the average number of offspring in a particular population. It is expressed as wrel.
See also:


You will also like...

Young plant growing from the soil.
Soils

Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..

Origins of Life on Earth
Origins of Life on Earth

Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..

Independent Assortment and Crossing Over
Independent Assortment and Crossing Over

This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

Flowers and tiny fruits of the pomegranate plant
Fruits, Flowers, and Seeds

This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of f..

Chemical effects on plant growth and development
Effect of Chemicals on Growth & Development in Organisms

Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..

Digestion and Absorption of Food
Digestion and Absorption of Food

The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..