stable

Variety

...polymerase III - makes a variety of very small, stable RNA s including 5s ribosomal RNA s and transfer RNA s RNA primer s - primer s used to synthesize DNA strand s by actin g as a template ... Full article >>> hnRNA : Heterogeneous nuclear RNA ; refers collectively to the ...

Tubulin

...ylated a- tubulin immunoreactivity (a marker of stable microtubules ) and a reduction of the in situ hybridization signal for tubulin m RNA . Full article >>> During polymerization, both the α- and β- subunits of the tubulin dimer are bound to a molecule of GTP. The GTP bound ...

Transgenic

...ransgenic Refers to an organ ism which carries a stable copy of a gene origin ating from another species introduced by DNA technology. Full article >>> transgenic An organ ism that has genes from another organ ism incorporated within its genome as a result of recombinant DNA ...

Transfer RNA

...polymerase III - makes a variety of very small, stable RNA s including 5s ribosomal RNA s and transfer RNA s RNA primer s - primer s used to synthesize DNA strand s by actin g as a template ... Full article >>> There, bound temporarily to a cytoplasm ic particle known as a r...

Thylakoids

... a serpentine receptor . ground state The normal, stable form of an atom or molecule . Contrast with the excited state. Full article >>>...

Theory

...a predictable series of communities until a final, stable community (the climax community ) in balance with the regional climate is attained. Full article >>> Pauling first described the a-helix nearly 50 years ago, yet new features of its structure continue to be discovered, using peptid...

Taq polymerase

...Taq POLYMERASE - A DNA polymerase which is very stable at high temperatures, isolated from the thermophil...bacterium Thermophilis aquaticus and which is very stable to high temperatures. It is used in PCR procedures and high temperature sequencing . Full articl...

Stable transfection

...e of tissue culture cells , resulting in the stable expression of trans fected genes. Clones of stably trans fected cells are selected by selectable marker s (e.g. Full article >>> Stable transfection : A form of transfection experiment designed to produce permanent lines of...

RNA polymerase

...polymerase III - makes a variety of very small, stable RNA s including 5s ribosomal RNA s and transfer RNA s ... Full article >>> RNA polymerase The enzyme responsible for forming m RNA during transcription . RNA world. Hypothetical stage in the evolution of life on earth in w...

Ribosomal RNA

...polymerase III - makes a variety of very small, stable RNA s including 5s ribosomal RNA s and transfer RNA s ... Full article >>> Regions of non- trans cribed DNA between trans cribed repeated genes such as ribosomal RNA genes in eukaryotes . Its function is probably to do with en...

Retrovirus

...e of tissue culture cells , resulting in the stable expression of trans fected genes. Full article >>> What is makes retrovirus es different from other RNA virus es like influenza? Full article >>> Retrovirus . A member of a class of RNA virus es that utilizes th...

Random mating

...s plant s ... Full article >>> The stable frequency distribution of genotype s, AA, Aa, and aa, in the proportions p2, 2pq, and q2 respectively (where p and q are the frequencies of the alleles , A and a) that is a con sequence of random mating in the absence of mutation , migration ,...

Pseudogene

...icle >>> PSEUDOGENE - Inactive but stable components of the genome which derived by duplication and mutation of an ancestral, active gene . Pseudogene s can serve as the donor sequence in gene conversion events. Full article >>> Pseudogene s are designated with th...

Protons

...lly the same mass as protons . In the most common stable atoms the number of neutrons is equivalent to the number of protons . Full article >>> Phosphorus the element with 15 protons (phos = light; phor = to bear carry: the element phosphorus was so named because some forms "glow in the ...

Promoter

...ap. The outward, antisense , transcript is more stable than the transposase m RNA . Full article >>> Constitutive promoter . An unregulated promoter that allows for continual transcription of its associated gene . (See Promoter .) Contig uous ( contig ) map. Full article >&#...

Plasmid

...e of tissue culture cells , resulting in the stable expression of trans fected genes. Full article >>> Plasmid s, small DNA fragments, are known from almost all bacteria l cells . Plasmid s carry between 2 and 30 genes. Some seem to have the ability to move in and out of the b...

Origin

...a predictable series of communities until a final, stable community (the climax community ) in balance with the regional climate is attained. Full article >>> Lindinger proposed the emendation Hemiberlesea for the armored scale Hemiberlesia indicating that it was origin ally improperly ...

Nuclease

...NA . Full article >>> RNA is less stable in the cell , and also more prone to nuclease attack experimentally. As RNA is generated by transcription from DNA , the information is already present in the cell 's DNA . However, it is sometimes desirable to sequence RNA molecule s....

Motif

.... Thus, the conclusion that m RNA s are inherently stable may not apply to all m RNA s. Full article >>> The tulip is the national flower of Iran and Turkey, and tulip motif s feature prominently in Persian and Turkish folk arts. Full article >>> A protein structural moti...

Migration

...>> Migration patterns Evolution arily stable mitochondrial DNA and Y chromosomes have allow...ulation , gene and genotype frequencies remain stable as long as there is no selection , mutation , or migration . For a bi-allelic locus where the...

Metabolism

...en sufficient iron is present in the cell . It is stable (and thus capable of producing more TfR) when iron is deficient (ref). Full article >>> Botany covers a wide range of scientific disciplines that study the growth, reproduction , metabolism , development, diseases, and evolution of...

Marker

...ylated a- tubulin immunoreactivity (a marker of stable microtubules ) and a reduction of the in situ hybridization signal for tubulin m RNA . Full article >>> Gusella and his research team, who used RFLP s to identify a marker . Testing a large library of human DNA fragments...

Lateral

...gular faces and 12 corners. This is a particularly stable structure. The capsid of many phage s and virus es are icosahedral. Full article >>> derived from the cambium of the or other lateral meristem Source: Noland, George B. 1983. General Biology , 11th Edition. St. Louis, MO. C. V...

In vitro

...orated into tobacco protoplasts are 2-4 times more stable than transcript s without caps. Similarly, transcript s with poly(A) tails are 2-3 times more stable than transcript s without tails (ref). Full article >>> In vitro In some respects, ...

In situ hybridization

...ylated a- tubulin immunoreactivity (a marker of stable microtubules ) and a reduction of the in situ hybridization signal for tubulin m RNA . Full article >>> This micrograph uses fluorescence in situ hybridization ( FISH ) to reveal the ABL DNA (red) and the BCR DNA (green) i...

Hybridization

...ylated a- tubulin immunoreactivity (a marker of stable microtubules ) and a reduction of the in situ hybridization signal for tubulin m RNA . Full article >>> The blot was probe d by hybridization with a clone d fragment of the tree's genome . For this particular combination o...

Hybrid

...ylated a- tubulin immunoreactivity (a marker of stable microtubules ) and a reduction of the in situ hybrid ization signal for tubulin m RNA . Full article >>> The blot was probe d by hybrid ization with a clone d fragment of the tree's genome . For this particular combinati...

Homeostasis

...ate its internal environment so as to maintain a stable condition, ... Full article >>> Homeostasis is the maintenance of a stable internal environment . Homeostasis is a term coined in 1959 to describe the physical and chemical...

Grana

... a serpentine receptor . ground state The normal, stable form of an atom or molecule . Contrast with the excited state. Full article >>>...

Gel

...d normal AI are incorporated to the same extent in stable complexes isolated by gel filtration, showing similar dimensions and stoichiometries. Full article >>> The current forces the molecule s through pores in a thin layer of gel , a firm jelly-like substance. The gel can be made so t...

Food web

..., and may not recover at all because of a possibly stable change in the food web . The North-west Atlantic population s spawn in the winter and spring in the Cape Cod region in a location called Georges Bank. Full article >>>...

Equilibrium

...ulation , gene and genotype frequencies remain stable as long as there is no selection , mutation , ...ate its internal environment so as to maintain a stable condition, by means of multiple dynamic equilibrium adjustments controlled by interrelated regulat...

Endosymbiont

...ded by the "proto chloroplast ", while providing a stable environment and the raw materials the endosymbiont s required. Full article >>> The evidence for trans fer of genes from mitochondria and plastid s to the nucleus supports the endosymbiont theory for the origin of the fo...

Duplication

...icle >>> PSEUDOGENE - Inactive but stable components of the genome which derived by duplication and mutation of an ancestral, active gene . Pseudogene s can serve as the donor sequence in gene conversion events. Full article >>>...

DNA polymerase

...bacterium Thermophilis aquaticus and which is very stable to high temperatures. It is used in PCR procedures and high temperature sequencing . Full article >>> DNA polymerase . See Polymerase . DNA polymorphism . One of two or more alternate forms ( alleles ) of a chromosomal locus ...

Competent

...ransgenic Refers to an organ ism which carries a stable copy of a gene origin ating from another species introduced by DNA technology. Full article >>>...

Chlorophyll

...igment s which contain a porphyrin ring. This is a stable ring-shaped molecule around which electrons are free to migrate. Full article >>> Chlorophyll is a complex molecule . Several modification s of chlorophyll occur among plant s and other photosynthetic organ isms. All photosyn...

Carrying capacity

...population begins to level off and soon reaches a stable value. Full article >>> Very much so, because as the carrying capacity of the earth reaches its limit--probably during our lives--as population s expand, they come into greater and greater conflict with the maintenance of natural ar...

Biomass

... organ isms, measured as biomass , remains quite stable as does the concentration of residual (unused) nutrient. Numbers can change somewhat due to changes in the size of individuals. Full article >>> By some estimates, microbe s make up about 60% of the Earth's biomass , yet less than 1%...

Biologist

...volution , such as the concept of evolution arily stable strategy introduced by John Maynard Smith in his essay Game Theory and the Evolution of Fighting. Full article >>> Biologist s know little about the genetic mechanisms of speciation . Some think a series of small changes in each ...

Beta sheet

...eta sheet - or segment s of chain that assume no stable shape and are formed by hydrogen bond ing. Full article >>> Another secondary structural element is called a " beta sheet " wherein the peptide backbone sort of traverses one direction, turns around and comes back, hydrogen bond in...

Antisense

...ap. The outward, antisense , transcript is more stable than the transposase m RNA . IS10R transposase mutants are only weakly complement ed by wild type IS10 modules. Full article >>> In developing zebrafish, reggies become concentrated in neuron s and axon tracts, and their abs...