Trans

Transcription and mRNA processing occur in the nucleus.
The nucleus is surrounded by a double membrane. After the mature mRNA transcript is produced, it moves out of the nucleus and into the cytoplasm through pores in the nuclear membrane.
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Transcription factors are proteins that directly regulate the gene transcription machinery.
Other Resources
PubMed Google ...
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Transport Across Cell Membranes
Facilitated Diffusion of Ions
Ligand-gated ion channels.
External Ligands
Internal Ligands ...
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Translation is the process of converting the sequence of nucleotide residues in mRNA into the sequence of amino acid residues in a polypeptide. Since protein is synthesized as a consequence of translation, the process is also called protein synthesis.
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translocation
transfer of soluble materials through the sieve tubes of the phloem of vascular plants; the exchange of parts of chromosomes
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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Transposons are sequences of DNA that can move around to different positions within the genome of a single cell, a process called transposition. In the process, they can cause mutations and change the amount of DNA in the genome.
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Transitional Vertebrate Fossils FAQ
[Last Update: March 17, 1997]
wrote this FAQ as a reference for answering the "there aren't any transitional fossils" statement that pops up on talk.origins several times each year.
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trans conformation In a heterozygote involving two mutant sites (ab) within a gene or gene cluster, the arrangement, Ab/aB. See cis conformation
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
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The transport proteins integrated into the cell membrane are often highly selective about the chemicals they allow to cross.
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Search for transcription in these other databases too
Definition of transcription :
verb form = transcribe ...
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Transmembrane receptors are proteins that span the thickness of the plasma membrane of the cell, with one end of the receptor outside (extracellular domain) and one inside (intracellular domain) the cell.
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Transferring technology to the private sector, a primary mission of DOE, is strongly encouraged in the Human Genome Program to enhance the nation's investment in research and technological competitiveness.
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Transposons have also been described as a sort of wrangler; they can bring multiple resistance genes into a single plasmid. How do they do that?
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Chapter 19
Translocation of the cell-penetrating Tat peptide across artificial bilayers and into living cells
Paul Curnow1,3, Harry Mellor, David J. Stephens, Mark Lorch2 and Paula J. Booth3 ...
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There are many different reasons for gene transfer: for example, attempting to treat disease by supplying patients with therapeutic genes. There are also many possible ways to transfer genes.
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Transposition
Moving a DNA segment from one position of the genome to another or to a different genome. This change in genome structure happens in many organisms from bacteria to higher plants and animals.
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Transcription terminator
A nucleotide sequence that acts as a signal for termination of transcription.
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Transition in the species composition of a biological community, often following ecological disturbance of the community; the establishment of a biological community in an area virtually barren of life.
ecology
[Gk. oikos, home + logos, a discourse] ...
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Transcribe a DNA sequence and translate it into a protein!
Go to Chapter 6: DNA, RNA, Protein Synthesis Quizzes
DNA/RNA/Protein Synthesis Quiz ...
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transduction -- Viral transfer of DNA to new host.
transgression -- (n) A rise in sea level relative to the land.
tree -- Any tall plant, including many conifers and flowering plants, as well as extinct lycophytes and sphenophytes.
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Translation invariance, rotation invariance, time reversal symmetry, and reflection symmetry of the laws of physics. Indeed, special relativity generalizes and unifies these symmetries via the principle of Lorentz invariance.
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transgenic animals: animals in which one or more genes have been introduced into the nonreproductive cells.
translation: the process by which the genetic code is transferred to an amino acid sequence in a protein.
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Transcription: The process by which DNA passes genetic information to RNA. Transcription is the first step in producing proteins.
Transfer RNA (tRNA): A class of RNA that carries amino acids into ribosomes and bonds with mRNA for protein production.
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transition state - structure that forms transiently in the course of a chemical reaction and has the highest free energy of any reaction intermediate; a rate-limiting step in the
reaction.
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Transformed (Bt-transformed): Transfer and expression of a gene (e.g., for Bt toxin) into another organism.
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transducer A receptor that converts one form of energy into another.
transduction. Condition in which bacterial DNA (and the genetic characteristics it bears) is transferred from one bacterium to another by the agent of viral infection.
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transposable element - see transposon
transposon - mobile segment of DNA capable of "hopping" into or out of chromosomal DNA; ...
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translocated herbicide. Herbicide that is able to move throughout a plant after being applied to leaf surfaces.
transpiration. The evaporation of water vapor from plants, mostly through stomata.
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transcription/translation control sequences. That artificial construct (the "expression clone") will produce a pseudo-mammalian protein if put back into bacteria.
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TRANSCRIPTION/TRANSLATION REACTION - An in vitro series of reactions, involving the synthesis (transcription) of an mRNA from a plasmid (usually with T7 or SP6 RNA polymerase), ...
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Transgenic. An organism in which a foreign DNA gene (a transgene) is incorporated into its genome early in de- velopment.
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Transcription factor: A protein which is involved in the transcription of genes. These usually bind to DNA as part of their function (but not necessarily).
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transverse
Lying or placed across or crosswise
traverse muscles
Fibers run ventrally and slightly posteriorly, originates from cartilage of the floating ribs, the lumbar vertebrae and the border of the ilium and inserts on the linea alba.
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: DNA is transcribed into RNA and RNA is translated into protein only in this direction. This concept is first proposed by Francis Crick in 1957. For more, see
Gene Expression
.
Centromere ...
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ElectronTransportChain a system of electron carriers embedded into the inner membrane of a mitochondrion to transfer energy from electrons to O2 to form water
(elektron = amber from the electrical charge produced by rubbing [friction] on amber) ...
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The inclusion or exclusion of different exons to form different mRNA transcripts. (See RNA.) Amino acid. Any of 20 basic building blocks of proteins-- composed of a free amino (NH2) end, a free carboxyl (COOH) end, and a side group (R).
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Charcot-Marie Tooth disease -- a condition characterized by degeneration of the motor and sensory nerves that control movement and feeling in the arm below the elbow and the leg below the knee; transmitted in autosomal dominant, ...
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passive transport Transport of a molecule across a membrane down a concentration gradient which does not require the input of energy. -pathy disease of, suffering pathogenic Disease-causing.
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Dispersal (sensu ecology): the transport of propagules away from the parent. Diversity: a) the total number of species present;
b) some index which incorporates both the number of species and the relative abundance of each.
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Cytoskeleton - network of microtubules that support and give structure to cell while aiding in intracellular transport
Cytosol - jelly-like material that contains the organelles between the nucleus and the plasma membrane ...
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Back translation Use of the experimentally determined amino acid sequence of part or all of a polypeptide to determine the theoretical nucleic acid base sequence(s) which could code for it. This is normally done using a computer programme.
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Acousto-optic tunable filters (AOTFs) are birefringent crystals bonded to a piezoelectric transducer.
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The essence of the motor system is that myosin makes transient contact with the actin filaments and undergoes a conformational change before releasing contact.
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New combination When a species is transferred to a different genus for the first time.
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[L. pellucidus - clear, transparent]. The central region of the blastodisc where the primitive streak forms. It lies directly over the subgerminal cavity and so appears transparent.
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Nutrient cycling. The pattern of transfer of nutrients between the components of a food web
Nutrients. Those constituents required by organisms for maintenance and growth (we use this term in this book in application to plants) ...
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Mitochondria
Small organelles in the cell where energy from electron transport between molecules is converted into energy for biological activity. Mitochondria also possess their own genome, which is inherited maternally.
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Independent Assortment
This principle of heredity formulated by Gregor Mendel states that traits are transmitted to offspring independently of one another.
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In bacteria, either the electron transport system or the site of photosynthetic energy metabolism is located in the cytoplasmic membrane. The ribosomes of the prokaryotes are the site of protein synthesis.
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The inner fluid phase has most of the enzymes of the tricarboxylic acid cycle and some of the urea cycle. The inner membrane contains the components of the electron transport chain.
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