43 results found

Search Results for: fitness

Relative fitness

Definition noun A measure of biological fitness wherein the reproductive rate (of a genotype or a phenotype) is relative to... Read More

Absolute fitness

Definition noun A measure of biological fitness expressed as the total number of gene copies transmitted to the subsequent... 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

Fitness

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

Physical fitness

Definition noun A general state of well-being and good health in which performance is optimal, i.e. effectively and... Read More

Natural selection

Natural Selection Definition What is natural selection in biology? Natural selection is defined as a process in nature... Read More

Fit

Definition adjective (biology) Adapted, i.e. in a way that an organism is able to live and reproduce offspring in an... Read More

Pleiotropy

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

Inbreeding depression

Definition noun, plural: inbreeding depressions The loss of vigour or the reduced biological fitness in a particular... Read More

Gene pool

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

Phenotype

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

Consanguinity

Definition noun, plural: consanguinities A relationship that arises from having a common ancestor;... Read More

Isoenzyme

Isozymes (also known as isoenzymes) are enzymes that differ in amino acid sequence but catalyze the same chemical reaction.... Read More

Symbiosis

Symbiosis Definition What is symbiosis? Symbiosis can be defined as any kind of relationship or interaction between two... Read More

Inbreeding

Definition noun A mode of breeding involving two genetically- or consanguineously- related individuals or... Read More

Purebred

Definition noun, plural: purebreds An animal that is of pure breed, i.e. whose ancestors on both sides have been members of... Read More

Homologous chromosome

A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and... Read More

Crossbreeding

Definition noun The act or process of producing offspring by mating purebred individuals of different breeds or... 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

Self pollination

Definition noun (botany) A type of pollination in which the pollen from the anther of the flower is transferred to the... Read More

Synergistic effect

Synergistic Effects Definition Synergistic effects (biology definition): the effects when chemical substances or biological... 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

Senescence

Senescence Definition Senescence is defined as biological aging. In cell biology, it refers to the cell wherein it is no... Read More

Allee effect

The Allee effect is a phenomenon in biology characterized by a correlation between population size or density and the mean... Read More

Allogamy

Definition noun (botany) Cross-fertilization, where fertilization occurs when an ovum of a flower is fertilized by the... Read More

Overdominance

Definition noun (genetics) A type of dominance characterized by a phenotype that is more pronounced in a heterozygote... Read More

Phasic

phasic --> adaptation 1. (Science: cell biology) The adjustment of an organism to its environment or the process by which... Read More

At Home in the Universe: The Search for the Laws of Self-Organization and Complexity

At Home in the Universe: The Search for the Laws of Self-Organization and Complexity  ... Read More

Cross-pollination

Definition noun (botany) A type of pollination in which the pollen from the anther of a flower is transferred to the stigma... Read More

Mutualism

Mutualism Definition What is mutualism? In biology and ecology, a mutualism is a form of symbiosis that is characterized by... Read More

Physiological adaptation

If we look over evolutionary history, we find that it’s neither the most genius and intelligent nor the strongest and the... Read More

Directed case study method for teaching human anatomy and physiology

DIRECTED CASE STUDY METHOD FOR TEACHING HUMAN ANATOMY AND PHYSIOLOGY William H. Cliff and Ann W. Wright Department of... Read More

Predation

In ecology, predation is a mechanism of population control. Thus, when the number of predators is scarce the number of... Read More

Obligate parasite

Parasitism is a form of symbiosis that occurs between a parasite and its host. The parasite is the organism that generally... Read More

Diploid

Diploid Definition Let's first understand the meaning of the word - diploid. From the words ‘di’, meaning "two", and... Read More

Edges

Edge 1. To move sideways; to move gradually; as, edge along this way. 2. To sail close to the wind. I must edge up on a... Read More

Ripe

ripe 1. Ready for reaping or gathering; having attained perfection; mature; said of fruits, seeds, etc.; as, ripe grain. So... Read More

Propriety

propriety 1. Individual right to hold property; ownership by personal title; property. Onles this propriety be exiled. So... Read More

Function

Definition noun, plural: functions (biology) The special, normal, proper physiologic activity of a body part or an... Read More

Adaptation

Adaptation Definition In biology and ecology, adaptation refers to the process of adjusting in behavior, physiology, or... Read More