stop

Transcription

...d of a gene which causes the RNA polymerase to stop transcription . Transfection A general term to describe the introduction of recombinant or vector DNA into host cells . Full article >>> Usually associated with transcription -initiation regions of (housekeeping) genes tr...

Transcript

...d of a gene which causes the RNA polymerase to stop transcript ion . Transfection A general term to describe the introduction of recombinant or vector DNA into host cells . Full article >>> If this tape is authentic and its transcript s correctly trans lated, it shows at ...

Terminator

...d of a gene which causes the RNA polymerase to stop transcription . Transfection A general term to describe the introduction of recombinant or vector DNA into host cells . Full article >>> Because the transcription starts from a specific base -pair sequence (a promoter...

Termination codon

...nal the end of protein synthesis. Also known as stop codon . See codon . Related Terms: Messenger RNA...rmination of the protein synthesis process. See stop codon . Full article >>> TERMINATION CODON - See STOP CODON . TERMINATOR - A se...

Telomerase

...ic cells . Cyclin-Dependent Kinase s Some cells stop dividing in G1; others stop in G2. Full article >>> Telomerase and telomere s have been full of surprises for ...

T cell

...ce antibodies . Supressor T cells slow down and stop the immune response of B and T cells , serving as an off switch for the immune system . Full article >>> T cell receptor s play a major role in immunity and autoimmune diseases. For this reason, their genomic sequence has been...

Suppressor

...suppressor T cells T cells that slow down and stop the immune response of B cells and other T cells . Immune system cells that shut off the antibody production when an infection is under control. Full article >>> Suppressor gene A gene that can suppress the action of...

Substitution

...issense mutation . A mutation that results in a stop codon so that incomplete proteins are produced, it is called a nonsense mutation . Full article >>> This is called a synonymous mutation or silent mutation ; non-synonymous substitution s do cause a change in the amino acid . ...

Stop codon

Stop Codon s In classical genetics , the stop codon s were given names: UAG was amber, UGA was o...ecific genes in which mutation of each of these stop codon s was first detected. Full article >>> stop codon The codon on a messenger...

Start codon

... chain initiation codon ( start codon ). Unlike stop codon s, the codon alone is not sufficient to be...in initiation codon ( start codon ). But unlike stop codon s, these are not sufficient to begin the process; nearby initiation sequence s are also requi...

Spindle Fibers

...fibers made of microtubules ; spindle inhibitors stop the synthesis of microtubules . Because most adult cells don't divide often, they are less sensitive to these drugs than are cancer cells . Full article >>> kinetochore : a region of DNA that has remained undivided during pro...

Somatic cells

...ic cells . Cyclin-Dependent Kinase s Some cells stop dividing in G1; others stop in G2. Full article >>> [Gr. meiosis - reduction ]. Two consecutive nuclear divis...

Somatic cell

...c cell s . Cyclin-Dependent Kinase s Some cells stop dividing in G1; others stop in G2. Full article >>> [Gr. meiosis - reduction ]. Two consecutive nuclear divis...

Somatic

...c cells . Cyclin-Dependent Kinase s Some cells stop dividing in G1; others stop in G2. Full article >>>...

Sense

... a codon or an amino acid to a termination or stop codon and leads to premature termination of translation . Related Terms: Mutation ... Full article >>> mis sense mutation The most common type of mutation involving a base -pair substitution within a gene that changes a ...

Segment

...fic polypeptide , and includes its own start and stop codon s. When an m RNA encodes two or more prote...he relevant translation al start (initiation) and stop (termination) codon s. Full article >>> Arthropod: Any of the invertebrate animals ...

Reading frame

...of codon s that continues without encountering a stop codon is called an open reading frame (ORF). ...long DNA sequence that is unin- terrupted by a stop codon and encodes part or all of a protein . (See Reading frame .) Operator . Full article >...

Polycistronic

...fic polypeptide , and includes its own start and stop codon s. When an m RNA encodes two or more proteins , it is called polycistronic . Clade ... Full article >>>...

Pollination

...long DNA sequence that is unin- terrupted by a stop codon and encodes part or all of a protein . (See Reading frame .) ... Full article >>> Related Terms: Pollination Trans fer of pollen from the anther to the stigma in angiosperm s or from the microsporangium to the micro...

Peptidyl transferase

... >>> Inter action of the RF with a stop codon causes the peptidyl transferase activity of the ribosome to catalyze the hydrolysis of the ester bond between the t RNA and the polypeptide chain, ... Full article >>>...

Open reading frame

...ing an initiation codon that does not contain a stop codon . Detection of an open reading frame in D...r protein . A length of DNA not interrupted by stop codon s. A sequence of in frame codon s preceded by a translation al initiation codon and term...

Oogonia

...at divide twice into oocytes . These stem cell s stop at the diplotene stage of meiosis I and lay dormant within a protective shell of somatic cells called the follicle. Full article >>> Diploid stem cell s called oogonia divide by mitosis to produce more oogonia and pri...

Oocytes

...at divide twice into oocytes . These stem cell s stop at the diplotene stage of meiosis I and lay dormant within a protective shell of somatic cells called the follicle. Full article >>> in vitro: Shh can bind to the large extracellular domain s of Ptc1 when express ed in tissu...

Nucleotide

...or example polyA synthetase. termination codon s stop codon s. Full article >>> In practice, when synthesising an oligo nucleotide primer or probe based on this information a mixture of all the possible sequence s is made, and referred to as a degenerate oligo nucleotide . Full...

Nonsense Mutation

... a codon or an amino acid to a termination or stop codon and leads to premature termination of tran...anges an amino acid codon to one of the three stop codon s, resulting in a shorter and usually nonfunctional protein . noradrenaline ... Full article...

Mitosis

...fibers made of microtubules ; spindle inhibitors stop the synthesis of microtubules . Full article >>> mitosis The multistep process ( interphase , prophase , metaphase , anaphase , telophase ) in eukaryotic cells that results in the replication of chromosomes and cell divis...

Missense Mutation

...issense mutation . A mutation that results in a stop codon so that incomplete proteins are produced, it is called a nonsense mutation . Full article >>> Missense mutation -- a change in the base sequence of a gene that alters or eliminates a protein . Mitochondrial DNA -- th...

Microtubules

...fibers made of microtubules ; spindle inhibitors stop the synthesis of microtubules . Because most adult cells don't divide often, they are less sensitive to these drugs than are cancer cells . Full article >>> caption: In the image above (obtained using a fluorescent-light microsc...

Messenger RNA

...fies the incorporation of one amino acid or is a stop signal, during the biosynthesis of proteins . Full article >>> The process of translation (making protein from the instructions on a messenger RNA template ) is similar in these lineage s, ... Full article >>> R...

Initiation Codon

... chain initiation codon ( start codon ). Unlike stop codon s, the codon alone is not sufficient to be...ing an initiation codon that does not contain a stop codon . Detection of an open reading frame in DNA implies the presence of a gene that codes fo...

Genetic code

... codon s of m RNA to amino adds and translation stop signals. See Codon table. Full article >...ion signal, which is encoded by three different stop codon ... Full article >>> Genetic code . The three-letter code that trans lates...

G1 phase

... DNA replication (S phase), the RB protein will stop proliferation if conditions are inappropriate. Full article >>> interphase Period between two cell division s when a cell is carrying on its normal functions. Long period of the cell cycle between one mitosis and the next. I...

Digital organism

...programs had to compete with each other and try to stop the opponent from executing. Full article >>> Digital organism A digital organism is a self-replicating computer program that mutates and evolves. Full article >>>...

Digit

...programs had to compete with each other and try to stop the opponent from executing. Full article >>> Digit al organism A digit al organism is a self-replicating computer program that mutates and evolves. Full article >>> Digit al Microfluidics Microphotonics Machinery...

Degeneracy

...ion signal, which is encoded by three different stop codon ... Full article >>> The " Degeneracy " of Parasites During the course of adapting to conditions in their host , parasites often lose structures and functions that were essential for their ancestors (and any free-living rel...

Crossing

...hese several causes are amply sufficient wholly to stop the action of natural selection . I do not believe so. Full article >>> For example, crossing between parental Aa Bb and aa bb can have offspring s with the following non-parental genotype s: Aa bb or aa Bb. Recombinant s are r...

Codon

...fies the incorporation of one amino acid or is a stop signal, during the biosynthesis of proteins . Fu...rotein 's amino acids . The ORF then ends with a stop codon of UAA, UAG, or UGA (Fig. 2). Full article >>> A continuous sequence of n...

Coding region

...starts with a start codon (ATG) and ends with a stop codon . Related ... Full article >>> A segment of DNA that does not comprise a gene and thus does not code for a protein . Non- coding region s are interspersed throughout DNA . A B C D E F G H I J K L M N O P Q R S T U V W X...

Code

... codon s of m RNA to amino adds and translation stop signals. See Codon table. Full article >...ion signal, which is encoded by three different stop codon ... Full article >>> Regions of mature RNA that do not code for proteins ...

Classical genetics

...le >>> In classical genetics , the stop codon s were given names: UAG was amber, UGA was o...ecific genes in which mutation of each of these stop codon s was first detected. Full article >>> Foundations of Classical Genetics from...

Cistron

...he relevant translation al start (initiation) and stop (termination) codon s. Clones : A group of cell...fic polypeptide , and includes its own start and stop codon s. When an m RNA encodes two or more proteins , it is called poly cistron ic . Full arti...

Cell growth

...teins produced by some tumor - suppressor genes stop the cell cycle when DNA becomes damaged. Full article >>> Tumor suppressor genes inhibit progression in tumor development. They usually inhibit abnormal cell growth or promote apoptosis . Examples include p53 and Rb. Other R...