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A genetic isolate is a population of organisms that has little to no genetic mixing with other organisms of the same species due to geographic isolation or other factors that prevent reproduction. Genetic isolates form new species through an evolutionary process known as speciation .
Also called functionalism. The Darwinian view that many or most physiological and behavioral traits of organisms are adaptations that have evolved for specific functions or for specific reasons (as opposed to being byproducts of the evolution of other traits, consequences of biological constraints, or the result of random variation). adaptive radiation The simultaneous or near-simultaneous ...
The product of isolation (microbiology), may be called: an isolate; specifically a fungal isolate; a variant (biology); or a strain (biology). Chemical isolate, from chemical purification Protein isolate; Genetic isolate, a population that does not mix with organisms of the same species; Isolate (computation), in the Java Application Isolation API
In addition to the genetic causes of reproductive isolation between species there is another factor that can cause post zygotic isolation: the presence of microorganisms in the cytoplasm of certain species. The presence of these organisms in a species and their absence in another causes the non-viability of the corresponding hybrid.
All the common words, idioms, proverbs, and modern academic, literary, scientific, and technical terms of the Urdu language have been listed. Only those obsolete words and idioms have been included which are found in ancient books. They are indicated by the symbol "Qaaf". The English words that are commonly used in Urdu have also been included. [5]
It has been said that "there is no universally accepted definition for the terms 'strain', 'variant', and 'isolate' in the virology community, and most virologists simply copy the usage of terms from others". [2] A strain is a genetic variant or subtype of a microorganism (e.g., a virus, bacterium or fungus).
Genetic divergence will always accompany reproductive isolation, either due to novel adaptations via selection and/or due to genetic drift, and is the principal mechanism underlying speciation. On a molecular genetics level, genetic divergence is due to changes in a small number of genes in a species, resulting in speciation . [ 2 ]
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...