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Evolution in Biological Dictionary

Evolution

In biology, evolution is change in the genetic material of a population of organisms from one generation to the next. Though changes produced in any one generation are small, differences accumulate with each generation and... The study of human evolution encompasses many scientific d...

Parallel evolution

Parallel evolution is the development of a similar trait in different not closely related species, but descending from the same ancestor. I would prefer a single article, under " parallel evolution ", which includes the other two terms. ... difference is that parallel ...

Molecular evolution

Molecular evolution is the process of evolution at the scale of DNA, RNA, and proteins. Molecular evolution emerged as a scientific field in the 1960s as researchers from molecular biology, evolutionary biology and population genetics sought to understand recent... The histor...

Experimental evolution

In evolutionary biology, the field of experimental evolution is concerned with testing hypotheses and theories of evolution by use of controlled experiments. Evolution may be observed in the laboratory as populations adapt to... Experimental evolution In evolutionary biology , the ...

Convergent evolution

For more details on this topic, see List of examples of convergent evolution . ... Tietjen, " Convergent Evolution Examples – Ecological Equivalents", The Spider ... Convergent evolution - the evolution of similar traits in unrelated lineages - is rife in nature, a...

Zoology

... Zoology , also spelled zoölogy, is the branch of biology that focuses on the structure, function, behavior, and evolution of animals. The zoologist's pronunciation of " zoology " is . zoology n. , pl. -gies . The branch of biology that deals with an...

Y chromosome

...science magazine nature, with research papers, science news articles, science jobs and other nature ... The human Y chromosome , in the light of evolution ... What makes a man a man? In a new study, researchers say that there is a dramatic loss of genes from the human Y chromosome that could ev...

Virulence

...fungi reveal a complex interaction ... See "Host Immunity Escalates the evolution of Parasite Virulence " , e251. ... Different directions of virulence evolution are expected depending on the ... Optimal virulence is a concept rela...

Vestigial organ

... argued that vestigial organs are evidence of evolution and ... Vestigial organs have demonstrated re...seless. ... Vestigial organs are evidence for evolution because we expect evolutionary ... This articl... Organs ) ... Vestigial leftover organs of evolution do not exist. ... Per Evolutionists a vestigial ...

Transposable element

...at carry genes for transposase activity ... shown to consist of transposable element sequences. ... transposable elements can affect the evolution of the ... transposable element related evolutionary ... Automated comparison of transposable element assembly against a database of ... A...

Thermoregulation

...tion from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. A paper that discusses the evolution of the modern human thermoregulatory mechanisms. ... Thermoregulation is any physiological or behavioral mechanism that acts to ... Thermoreg...

Tetrapod

...of terrestrial tetrapod faunal turnover during most of the Early Permian and late ... lack of good Palaeozoic tetrapod index fossils. ... ... evolution of Tetrapods . And the ... Pederpes finneyae is an early tetrapod described by Ms. Clack in Nature ... not the last word in tetrapod evolution. ....

Synteny

...nd encyclopedia. ... synteny . Synteresis. Synteresis. Synteretic. Synteretics. Syntex ... Comparative genomics tells us a great deal about the evolution of the pufferfish genome, ... Here's something else researchers can learn from synteny . ... Britannica online encyclopedia article on synteny ...

Syngamy

...h nouns | Biology ... MEIOSIS and SYNGAMY . The basis of sexual reproduction is meiosis and syngamy . ... Meiosis and Syngamy | Gametes | evolution of Life Cycles ... Sexual reproduction involves meiosis and syngamy . ... syngamy -- The process of union of two gametes; sometimes called f...

Symbiosis

...le of a mutualistic symbiosis . ... ( Some people restrict the term symbiosis to only these mutually beneficial ... Cleaning Symbiosis ... The evolution of Symbiosis ... Mimicry is a form of symbiosis where a species may mimic the colours, patterns, ... Symbiosis is a prime example of this p...

Symbiogenesis

...rs at GoDaddy.com. symbiogenesis .biz. Sponsored Listings. The Hoax Called evolution ... Read short stories, poetry & become a leader of positive ... Sy...rs by perma ... Ever since I learned about the idea that variation in evolution arises by symbiogenesis , I ... Symbiogenesis and the Origin of Species...

Survival of the fittest

...h 12 pages of encyclopedia entries, essays, summaries, research information, and more. ... Survival Of The Fittest . 07/01 ... The Theory of evolution has never been about survival . ... So, " Survival of the fittest " was apparently not obvious until after someone pointed it out. ... Surv...

Structural change

...s . ... structural change is less than might have been expected or desired. For ... governs the pace of structural change in general, and the evolution ... structural change , an important feature of New Zealand's recent macroeconomic history after the ... more robust to structural change a...

Spore

...ed Spore videos. ... Spore is a life simulation video game based on evolution and the universe. ... ESRB rating: (E) Everyone Spore : Platforms. Release...rsation for so long that ... Spore coverage at Yahoo! Games. ... The evolution Of Spore . See all the games that led up to Will Wright's magnum opus. ......

Species

...re usually written lower case and in italics, as rex in ... Article by Niles Eldredge outlining how environment change plays a major role in the evolution of species . Global campaign to protect thousands of animal and plant species that are under increasing threat. In biology, a species ...

Somatic hypermutation

... hypermutation requires activation-induced cytidine deaminase (AID) ... evolution and the molecular basis of somatic hypermutation of antigen receptor genes. ... to evolution immune somatic - hypermutation by tomhebbron on 2008 ... Somatic h...

Sociobiology

... and word games. Wilson popularized the term " sociobiology " as an attempt to explain the ... Sociobiology : The New Synthesis · Bibliography of evolution and human behavior ... "A science of sociobiology , if coupled with neurophysiology, might transform the ... vast amount of more recent researc...

Sexual reproduction

...loped several competing hypotheses to explain the evolution of sexual reproduction . Many groups of organism... of animals and plants, reproduce sexually. The evolution of sex... Reproduction , process whereby all ...ion - Wikipedia, the free encyclopedia ... The evolution Of Sexual Reproduction "Sex is the queen of pr...

Sex chromosomes

... sex -linked, or X-linked, genes. ... A look at the two human sex chromosomes (X and Y) and sex linked genes. ... Tutorials " Genetics and evolution " Chromosomes X and Y and Sex Determination ... Encyclopedia article about Sex chromosomes . Information about Sex chromosomes in the Co...

Selfing

...fing synthase tetrahydrocannabinol thc by xico ... posted to colonization evolution plant selfing by biomcgary on 2007-08-23 22:26: ... (more formally,...ions related to the evolution, ecology, development and ... Related to the evolution of selfing , I investigate the development of male and ... or can outc...

Selection

... ... 2.1 Levels of selection . 3 An example: antibiotic resistance. 4 evolution by means of natural selection . 4.1 History of the principle ... Selec...ize natural selection as increasing the 'fitness' of ... The theory of evolution by natural selection is one of the cornerstones of ... 4. Does Natura...

Seedless vascular plants

...ree phyla of extinct seedless vascular plants ... A. The majority of extant seedless vascular plants belong to this phylum ... I. evolution of vascular plants ( seedless & seed producing): A. To prevent desiccation: ... 4 phyla of seedless vascular plants : A. Phylum Psil...

Saturation mutagenesis

...tion Mutagenesis . Primer Strategy: Primers With One or More Degenerate Codons ... Iterative saturation mutagenesis (ISM) for rapid directed evolution of functional enzymes. Iterative saturation mutagenesis (ISM) is a new and efficient method ... Saturation , mutagenesis ,biologi cal,biology...

Satellite DNA

... mouse ... Satellite DNA sequences are known to be highly variable and to have been ... described here are effective to characterize mode of evolution of satellite DNA . ... What is satellite DNA ? Meaning of satellite DNA medical term. What does satellite DNA mean? ... satellite ...

Rudolf Steiner

... books by Rudolf Steiner . Rudolf Steiner Biography - Rudolf Steiner (February 27, 1861, Murakiraly, ... The Being of Man and His Future evolution by Rudolf Steiner ( 1981) ... Rudolf Steiner : A Biographical Introduction for Farmers by Hilmar Moore ... New Myths About Rudolf Steiner...

RNA virus

... embedded in a protein coat (capsid) ... There are a number of different ways in which RNA viruses replicate. ... The study of RNA virus evolution has blossomed over the last 20 years. ... Do RNA viruses evolve in a manner that is qualitatively different from other life forms? ... ... of ...

Rhizopoda

...ish ... ( Rhizopoda Radiaria), based on specimens gathered from the ocean by the ... taxonomy ... Protozoa are thought to be the origin for the evolution of all ... RHIZOPODA . use pseudopodia for locomotion and prey catch. all species hetero ... e) Rhizopoda . 1) neurotoxins. 2) pseudopodia. 3)...

Retina

... retina /choroid of a willing person who must cooperate in a way that would be difficult ... the basis of retina based identification and overviews evolution of ... He obtained his retina training at the prestigious Bascom Palmer Eye Institute ... Dr. Billiris Findlay has been practicing retina sinc...

Reproduction

...nimal organisms, reproduction occurs during or after ... Sexual reproduction is characterized by processes that pass a combination of ... The evolution of sexual reproduction is a major puzzle. ... This is called reproduction . ... These are costs unique to sexual reproduction . ... One of...

Recombinase

... composition of the Cre Recombinase Reaction Buffer? How should the NEBuffer ... Next, recombinase libraries were enriched through reiterative evolution cycles. ... The most active recombinase -- Tre -- had 19 amino acid changes as compared ... Delivery of Tre recombinase , HIV-1 proviral DNA ...

Reciprocal cross

...breds and Reciprocal Crosses of Angus, Brahman, and Charolais Cattle1 ... birth weight in reciprocal crosses among Angus, Charolais ... ... evolution of Reciprocal Cross Asymmetry ... 20 pairs had reciprocal crosses that allowed us to ... of the more successful reciprocal cross direction...

Punctuated equilibrium

...hange for most of their geological history . When evolution occurs, it is... But what are the implications.... Punctuated ... for teaching about the pace of evolution and punctuated equilibrium ... The concept...s. ... instead of a slow, continuous movement, evolution tends to be characterized ... The " punctuated ...

Pseudoautosomal regions

...d within them ... Genes outside the pseudoautosomal regions ... ... evolution of the pseudoautosomal regions of human sex chromosomes. The Human .... Gene Content Of The ... THE HUMAN PSEUDOAUTOSOMAL REGIONS ... ... evolution of the human pseudoautosomal region 1: isolation of the ... 1. Rappo...

Pseudogene

..., then mRNA retrotransposition is favored. ... Creationist scientists assert that pseudogene analysis used to argue to validity ... Pseudogene evolution and natural selection for a compact genome. ... Pseudogene . Definition(s) A copy of a gene that usually lacks introns and other essential ...

Protozoa

...st throughout aqueous environments and soil, occupying a range of ... taxonomy of protozoa ... Protozoa are thought to be the origin for the evolution of all multi-cellular ... contained in this PROTOZOA section are rather ... Protozoa summary with 12 pages of encyclopedia entries, essays, su...
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