The sequence of DNA at which the RNA polymerase iis released (i.e., stops transcibing) (Lecture: The Bacterial Cell: Structure, Function, Growth, and Gene Regulation III, 1/31/02)
Special connectors attached to the open ends of cables. Terminators keep stray signals from causing interference on the network.
A special sequence of nucleotides in DNA that marks the end of a gene; it signals RNA polymerase to release the newly made RNA molecule, which then departs from the gene. territory An area or space occupied and defended by an individual or a group; trespassers are attacked (and usually defeated); may be the site of breeding, nesting, food gathering, or any combination thereof. tertiary consumer A member of a trophic level of an ecosystem consisting of carnivores that eat mainly other carnivores. tertiary structure( tur-shee-air-ee) Irregular contortions of a protein molecule due to interactions of side chains involved in hydrophobic interactions, ionic bonds, hydrogen bonds, and disulfide bridges.
A nucleotide sequence in DNA that causes mRNA to detach and thus functions to stop transcription.
A connector with a 50 ohm resistor, required at each open end of an Ethernet coaxial cable. It is usually attached to an electrical ground at one end.
A resistor used to ground each end of an Ethernet cable. Terminators are used in bus topologies.
An electrical connector attached to the end of a cable to reduce signal reflections and unwanted noise.
A resistor used at each end of an Ethernet cable to ensure that signals do not reflect back or echo and cause errors. It is usually attached to an electrical ground at one end.
A device that stops electronic signals, and prevents them from proceeding or returning to other devices. This is necessary to stop a signal from continuously reflecting between devices.
a data source or data end user
a dedicated device used to mark the end of a device chain (as is most typically found with SCSI devices)
a set of resistors placed at each end of a transmission line, such as the SCSI (small systems computer interface) bus
a small cap that screws on the end of an open coax connector
a small device designed to dampen electrical signals reflected from the ends of a cable
a string that ends the command you sent, and that is the enter or return value
A 50 ohm resistor at each open end of an Ethernet coax cable that absorbs energy to prevent reflected energy back along the cable (signal bounce). It is usually attached to an electrical ground at one end.
A resistive device that matches a cable, or the unused output of an active or passive system component to its characteristic impedance. Proper termination is required to prevent unused outputs from causing reflections back down the line.
A resistive load for an open coaxial line to eliminate reflections; usually capacitively coupled to avoid shorts in cable-powered systems.
Most commonly found in relation to a SCSI chain, this functions to prevent the reflection or echoing of signals that reach the ends of the SCSI bus. Usually terminators are hardware circuits or jumpers.
Device used to define the ends of a bus to prevent communication errors. Most often heard when discussing storage devices which communicate using a high-speed SCSI bus.
A device attached to the end-points of a bus network or daisy-chain. The purpose of the terminator is to absorb signals so that they do not reflect back down the line. Ethernet networks require a terminator at both ends of the bus, and SCSI chains require a single terminator at the end of the chain. A character that indicates the end of a string. In the C programming language, the null character serves as a terminator.
A resistor connected to a signal wire in a bus or network for the purpose of impedance matching to prevent reflections. For example, a 50 ohm resistor connected across the end of an Ethernet cable. SCSI chains and some LocalTalk wiring schemes also require terminators.
A resistive load placed at the end of a cable to prevent data signals from reflecting back into the data path.
(of transcription) 1. A DNA sequence just downstream of the coding segment of a gene, which is recognized by RNA polymerase as a signal to stop synthesizing mRNA. In prokaryotes, terminators usually have an inverted repeat followed by a short stretch of Us at the very end of the transcribed portion. There may also be sequences beyond the transcribed part of the gene which influence the termination of transcription. 2. A name given to antisense DNA inserted in plants to make impossible the use of a second generation of seed by a farmer.
Electrical resistance at the end of a transmission line that absorbs signals on the line, thereby keeping them from bouncing back and being heard again by network stations. Terminators are very important on thin ethernet. They can also be important in PhoneNet LocalTalk networks depending on the topology. Terminators should not be used with StarControllers (LocalTalk/PhoneNet hubs). StarControllers are employed in the dorms and in many other location on campus. Terminator is a special connector, used on both end of a standard Ethernet or ThinWire (thinnet) Ethernet segment, which provides the 50-ohm termination resistance needed for the cable.
A DNA sequence that results in termination of transcription. See Transcription terminator.
A particular nucleotide sequence in the DNA of a gene that signals the termination of transcription.
50-ohm coaxial plug used to attach to one end of a BNC T-connector when the associated station is first or last in the group.
A device used at end-points on a LAN employing a bus topology to keep the signal from reflecting back and disrupting communications.
A device attached to each end of a 10BASE-5 or 10BASE-2 network that uses coaxial cables. A terminator is used to indicate where the network ends. Although SCSI chains require one "terminator" at the end of the chain, the terminator for Ethernet and that for SCSI are quite different.
Refers to a device used to signal the end of a SCSI chain.
A Terminator is an impedance-matching module used at or near each end of a transmission line. Only two Terminators can be used on a single H1 segment.
Used on both ends of a standard Ethernet or Thinwire Ethernet segment, this special connector provides the 50 ohm termination resistance needed for the cable.
A resistor that must be on both ends of a thick-and-thin Ethernet network.
A special resister pack or a block of resistors that tells the computer where the end of the SCSI chain is and ensures the electrical integrity of the bus signals. Terminators act as a filter to clear out electrical "noise" caused by multiple cables and devices.
A device that provides electrical resistance at the end of a transmission line. Its function is to absorb signals on the line, thereby keeping them from bouncing back and being received again by the network.
A resistor connected to a signal wire in a bus or network for impedance matching to prevent reflections, e.g., a resistor connected across signal wires at the end of a SCSI cable.
A resistor which must be at both ends of a SCSI chain to prevent signals from reflecting back down the bus.
A device (usually resistive) attached to the end(s) of a transmission line to prevent or reduce signal reflections that could affect the performance of the circuit.
Bond to one end of a flat bulk chain to create a jumpring attachment.
An electrical impedance attached to the open end of a transmission line to eliminate reflections.
n. 1. A character that indicates the end of a string, such as the null character in an ASCIIZ string. See also ASCII, ASCIIZ string. 2. An item of hardware that must be installed in the last device in a daisy chain or bus network, such as Ethernet or SCSI. See also terminator cap.
A resistive load for an open coaxial line used to eliminate reflections by terminating the line in its characteristic impedance (75 ohms).
component at the end of a cable segment, often required for correct operation.
In genetics, a terminator, or transcription terminator is a section of genetic sequence that marks the end of gene or operon on genomic DNA for transcription.