What is an analog in biochemistry?
Analog: In biochemistry, a substance that is similar, but not identical, to another.
What does analog mean in science?
3 usually analog : a chemical compound that is structurally similar to another but differs slightly in composition (as in the replacement of one atom by an atom of a different element or in the presence of a particular functional group)
What does an analog of a drug mean?
Often referred to as "designer drugs," analogue or analog drugs are those, which are substantially similar in chemical structure to controlled illicit substances.
What is an analog of a molecule?
A structural analog (analogue in modern traditional English; Commonwealth English), also known as a chemical analog or simply an analog, is a compound having a structure similar to that of another compound, but differing from it in respect to a certain component.
What's an example of an analog?
Examples of analog devices CRT (cathode ray tube) televisions and monitors. VCR (video cassette recorder) players and tapes. Any clock without a digital display. Polaroid or film cameras.
What is an analogue species?
1. One of two organs or parts in different species of animals or plants which differ in structure or development but are similar in function.
What analog means?
analogue • \AN-uh-log\ • noun. 1 : something that is similar to something else 2 : an organ or part similar in function to an organ or part of another animal or plant but different in structure and origin.
What is difference between analogue and agonist?
An agonist is a drug that binds to the receptor, producing a similar response to the intended chemical and receptor. Whereas an antagonist is a drug that binds to the receptor either on the primary site, or on another site, which all together stops the receptor from producing a response.
What is a protein analog?
Two proteins with related folds but unrelated sequences are called analogous. During evolution, analogous proteins independently developed the same fold. Bioinformatics.
What is the difference between an analogue and an isomer?
A compound that resembles another in structure but is not necessarily an isomer (for example, 5-fluorouracil is an analogue of thymine); analogues are often used to block enzymatic reactions by combining them with enzymes (for example, isopropyl thiogalactoside vs. lactose). 2.
What are the differences between analog and digital?
Signal Analog signal is a continuous signal which represents physical measurements. Digital signals are discrete time signals generated by digital modulation. Example Human voice in air, analog electronic devices. Computers, CDs, DVDs, and other digital electronic devices.
What is analog used for?
Analog signals are commonly used in communication systems that convey voice, data, image, signal, or video information using a continuous signal. There are two basic kinds of analog transmission, which are both based on how they adapt data to combine an input signal with a carrier signal.
What is analog technology?
Analog technology not only signifies the measuring instruments but it signifies everything that is not digital. The analog technology does not involve any electronic representation of numbers. The old- film cameras and cassette recorders are the best examples of analog technology.
What does analog vs digital mean?
The difference between analog and digital technologies is that in analog technology, information is translated into electric pulses of varying amplitude. In digital technology, translation of information is into binary format (zero or one) where each bit is representative of two distinct amplitudes.
What is an analog process?
In an analog process, the variable is represented by a proportional electrical signal. This signal is an analog of the variable. The measured values are sent back to the control system with analog signals.
What is analogous structure?
The term “analogous structures” comes from the root word “analogy,” which is a device in the English language where two different things on a basis of their similarities. Analogous structures are examples of convergent evolution, where two organisms separately have to solve the same evolutionary problem – such as staying hidden, flying, swimming, ...
How do scientists identify analogous structures?
Scientists usually identify analogous structures by looking at the known relatives of the two species being studied.
Why do whales have the same bones as bats?
The existence of homologous structures is strong evidence for the theory of evolution, since there is no reason why a whale should have the same bones in its fin that a bat has in its wings, unless they both evolved from a common ancestor.
When two species independently evolve similar solutions to an evolutionary problem?
Convergent evolution – When two species independently evolve similar solutions to an evolutionary problem.
Do insects and birds evolve at the same time?
But they look similar and serve a similar purpose. For example, the wings of an insect, bird, and bat would all be analogous structures: they all evolved to allow flight, but they did not evolve at the same time, since insects, birds, and mammals all evolved the ability to fly at different times.
What is analogue in biology?
2. A compound that resembles another in structure but is not necessarily an isomer; analogues are often used to block enzymatic reactions by combining with enzymes.
What does "similar" mean in medical terms?
noun A therapeutic agent with structural or chemical similarity to, or which mimics the effects of, another agent, but which differs chemically.
What is the definition of a dissimilar organism?
1. Biology An organ or structure that is similar in function to one in another kind of organism but is of dissimilar evolutionary origin.
How do analogous structures become analogous?
In many cases analogous structures, or analogues, tend to become similar in appearance by a process termed convergence. An example is the convergence of the streamlined form in the bodies of squid, shark, seal, porpoise, penguin, and ichthyosaur, animals of diverse ancestry.
What are some examples of analogous structures?
An example is the convergence of the streamlined form in the bodies of squid, shark, seal, porpoise, penguin, and ichthyosaur, animals of diverseancestry. Physiological processes and behaviour patterns may also exhibit analogous convergence. Egg-guarding behaviour in the cobra, the stickleback, the octopus, and the spider is thought to have evolved independently among those animals, which are quite distant in their biological relationships.
Which animal has an analogous convergence?
Physiological processes and behaviour patterns may also exhibit analogous convergence. Egg-guarding behaviour in the cobra, the stickleback, the octopus, and the spider is thought to have evolved independently among those animals, which are quite distant in their biological relationships.
Is analogy a part of evolution?
Analogy is one aspect of evolutionary biology and is distinct from homology ( q.v. ), the similarity of structures as a result of similar embryonic origin and development, considered strong evidence of common descent.
What is analogue in biology?
2. A compound that resembles another in structure but is not necessarily an isomer; analogues are often used to block enzymatic reactions by combining with enzymes.
What is an analogue?
an·a·logue. 1. A compound that resembles another in structure but is not necessarily an isomer (for example, 5-fluorouracil is an analogue of thymine); analogues are often used to block enzymatic reactions by combining them with enzymes (for example, isopropyl thiogalactoside vs. lactose). 2.
What is a nucleoside analogue?
nucleoside analogue a structural analogue of a nucleoside, a category that includes both purine analogues and pyrimidine analogues. purine analogue a structural analogue of one of the purine bases( purine, adenine, or guanine ); mercaptopurine and thioguanine are used as antineoplastics and azathioprine is an immunosuppressive.
What is the meaning of "analogue"?
2. a chemical compound having a structure similar to that of another but differing from it in respect to a certain component; it may have similar or opposite action metabolically. Also spelled analog. nucleoside analogue a structural analogue of a nucleoside, a category that includes both purine analogues and pyrimidine analogues.
What is a pharmacologist?
Pharmacology. noun A therapeutic agent with structural or chemical similarity to, or which mimics the effects of, another agent, but which differs chemically. Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
What is the definition of a molecule?
Molecular biology. adjective Referring to a molecule that is structurally and functionally related to another molecule. noun A molecule that is structurally and functionally related to another molecule. Pharmacology. noun A therapeutic agent with structural or chemical similarity to, or which mimics the effects of, another agent, ...
What is a compound that is structurally similar to another?
Chemistry. noun A compound that is structurally similar to another. Imaging. adjective An MRI term referring to or having a continuous range of values. Informatics. adjective Referring to data in the form of continuously variable (non-discrete) physical quantities, the mode in which most lab instruments produce information, ...
What is an analog?
2 : an organ or part similar in function to an organ or part of another animal or plant but different in structure and origin The gill of a fish is the analogue of the lung of a cat. 3 usually analog : a chemical compound that is structurally similar to another but differs slightly in composition ...
What is analog speaker?
1 a : of, relating to, or being a mechanism or device in which information is represented by continuously variable physical quantities Your speakers are analog technology in all its nearly century-old glory … . As the speakers get their signals from the cables, the drivers vibrate in a continual state of flux as the changing analog signals are fed to them. The drivers are presenting an analogy of what came from the original source, even if the source started off digital, such as a CD. — Ron Goldberg
What is structural analog?
A structural analog ( analogue in Commonwealth English ), also known as a chemical analog or simply an analog, is a compound having a structure similar to that of another compound, but differing from it in respect to a certain component.
What is the Federal Analogue Act?
Federal Analogue Act, a United States bill banning chemical analogues of illegal drugs. Functional analog, compounds with similar physical, chemical, biochemical, or pharmacological properties. Homolog, a compound of a series differing only by repeated units. Transition state analog.
Why are chemical analogues of illegal drugs developed and sold?
Chemical analogues of illegal drugs are developed and sold in order to circumvent laws. Such substances are often called designer drugs. Because of this, the United States passed the Federal Analogue Act in 1986. This bill banned the production of any chemical analogue of a Schedule I or Schedule II substance that has substantially similar pharmacological effects, with the intent of human consumption.
Is structural analog a functional analog?
Structural analogs are often isoelectronic . Despite a high chemical similarity, structural analogs are not necessarily functional analogs and can have very different physical, chemical, biochemical, or pharmacological properties.
Can structural analogs be isoelectronic?
A structural analog can be imagined to be formed, at least theoretically, from the other compound. Structural analogs are often isoelectronic .
What does analog mean?
The definition of analog is something that has some common traits with something else. A burger made of soy is similar to a burger made of beef so it is an example of an analog.
What is the difference between visual and audio signals?
A continuously present and continuously variable signal. In their native, or original, forms, audio and visual signals are analog. An active audio signal is a stream-oriented, i.e., continuously present, acoustic signal. A visual signal is a stream-oriented optical signal. Audio and visual signals travel in a waveform that can vary continuously and infinitely along two parameters amplitude and frequency. Amplitude refers to signal intensity or signal strength, which manifests as volume in audio signals and brightness in visual signals. Frequency refers to the number of waveforms per second, or cycles per second (cps), known in contemporary terminology as Hertz (Hz). Frequency manifests as pitch, or tone, in audio signals, and as color in image and video signals.All electromagnetic energy travels in continuous waveforms.The portions of the electromagnetic spectrum currently usable for telecommunications include electricity, radio, and infrared light. See also digital, electromagnetic spectrum, and Hz.
How is frequency altered?
For example, to transmit sound in analog, as broadcast and telephone companies did, the frequency is altered by amplifying the strength of the signal or varying the frequency in order to transmit information .
Is a graphic artist's pixel an atom?
An aside: the graphic artist's pixel is a close analog of the scientist's atom.
Is a burger analog or digital?
A burger made of soy is similar to a burger made of beef so it is an example of an analog. Of a system of measurement in which a continuously varying value, as sound, temperature, etc., corresponds proportionally to another value, esp. a voltage. Using hands, dials, etc. to show numerical amounts, as on a clock.
Is analog still alive?
Analog Is Alive and Well Audio and video have been analog since the beginning of radio, TV and magnetic recording. While the industry is almost entirely digital today, analog exists in the form of AM/FM radio, and vinyl records are still being pressed, although nowhere near the volume in their heyday.
What is an analogue?
2 : an organ or part similar in function to an organ or part of another animal or plant but different in structure and origin The gill of a fish is the analogue of the lung of a cat.
What is an analog compound?
3 usually analog : a chemical compound that is structurally similar to another but differs slightly in composition (as in the replacement of one atom by an atom of a different element or in the presence of a particular functional group)
What is analog spelled?
Adding to the confusion, there is also an adjective spelled analog, which came into use in the 20th century. The adjective can refer to something that is analogous (as in an analog organ ), but it is most often used to distinguish analog electronics from digital electronics (as in an analog computer or an analog clock ).
What is the meaning of "gill" in biology?
2 : an organ or part similar in function to an organ or part of another animal or plant but different in structure and origin The gill of a fish is the analogue of the lung of a cat.
Definition
Examples of Analogous Structures
- Wings Through The Ages
As mentioned above, many creatures have independently developed wings. All wings were evolved in order to solve the same problem: how to fly through the air. But they have evolved on several different occasions throughout history. Insects were the first organisms to evolve struct… - The “Duck-Billed” Platypus
When the first specimen of a platypus was sent to a British museum by an Australian explorer, they tried to pry it apart to prove it was a fake! British scientists were sure that someone had simply stuck a duck’s bill onto the body of a beaver-like animal. However, the truth was much m…
Difference Between Analogous and Homologous Structures
- The difference between homologousand analogous structures can be thought of in terms of ancestry and function: • Analogous structures have different ancestry, but the same function. These can be thought of in terms of the literary device of “analogy,” where two different things are compared based on their similarities. • Homologous structureshave the same ancestry, but may …
Identifying Analogous Structures
- Scientists usually identify analogous structures by looking at the known relatives of the two species being studied. If a line of common inheritance can be found – such as humans and monkeys both having fingers, when we have a fossil record showing that humans and monkeys shared a common ancestor, who also had fingers – the structures are not considered analogous…
Related Biology Terms
- Convergent evolution– When two species independently evolve similar solutions to an evolutionary problem.
- Evolution – The process by which organisms change over time, due to natural selectionand survival of the fittest.
Quiz
- 1. Which of the following is NOT an example of convergent evolution? A. Cacti in North America and Africa that have the same body structures. B. Birds and bats that are both able to fly. C. Whales and bats that both have metacarpal “finger” bones. D.Platypi and ducks that both have duck bills. 2. Which of the following is true of analogous structures? A. They have the same func…