Dictionary > Darwinian fitness

Darwinian fitness

Definition
noun
A relative measure of reproductive success of an organism in passing its genes to the next generation‘s gene pool
Supplement
In biology, “fitness” refers to a biological condition in which a competing variant is increasing in frequency relative to other competing variants in a population. It is also referred to, in particular, as Darwinian fitness. Darwinian fitness differs from the “physical fitness”, which is more associated with health, muscle tissues, oxygen, and physical effort. Darwinian fitness is more concerned about reproductive success. Darwinian fitness describes how successful an organism has been at passing on its genes. The more likely that an individual is able to survive and live longer to reproduce, the higher is the fitness of that individual. Thus, it may indicate the relative measure of reproductive success of an organism in passing its genes to the next generation. It denotes the relative ability of an individual (or population) to survive, reproduce and propagate genes in an environment. Thus, when one says an organism is biologically fit, it means that the organism is adapted and suitable to its environment based on its relative reproductive success with respect to its population. There are two ways through which fitness can be measured: absolute fitness and relative fitness.
See also:


You will also like...

Darwin's Finches - Natural Selection
Darwin and Natural Selection

This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

3D rendering of an antibody
Passive and Active Types of Immunity

Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..

Photosynthesis and respiration
Plant Metabolism

Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..

Human Reproduction
Human Reproduction

Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..

Angle Oak Tree
Seed Plants

Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..

Energy pyramid
Freshwater Community Energy Relationships – Producers & Consumers

This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..

Related Articles...

No related articles found

See all Related Topics