An inverted repeat ( or IR ) is a sequence of nucleotides that is the reversed complement of another sequence further downstream.

The operator site where repressor binds is a DNA sequence with inverted repeat symmetry.

** Global inverted repeat

** Local inverted repeat

The rise in the tune on the first line of the B phrase is inverted on the repeat ( at the point of " en pleurant "), to make the phrase period, and thus provide closure to the AABB form.

Ptolemy's problem is to forecast where, against the inverted bowl of night, some particular light will be found at future times.

Make sure that the metal tube through which the wire passes is in the shape of an inverted `` L '', the foot of the `` L '' about three inches long, so that the puppet can hang directly under the light.

It is shaped like an inverted mushroom, the head becoming buried in the silt.

Note that the RF signal modulation is inverted compared to the conventional AM: the minimum video signal level corresponds to maximum carrier amplitude, and vice versa.

Note that the beryllium scale is inverted, so increases on this scale indicate lower < sup > 10 </ sup > Be levels

Spinning the shuttlecock is also used to create spinning netshots ( also called tumbling netshots ), in which the shuttlecock turns over itself several times ( tumbles ) before stabilizing ; sometimes the shuttlecock remains inverted instead of tumbling.

When a symbol is not marked by any of the three grammar symbols ( square, cone, inverted cone ), they may be a non material thing, a grammatical particle, etc.

* Ice cream cone, an edible container in which ice cream is served, shaped like an inverted cone open at its top

The memorial is a fountain in the form of a round stone inverted cone.

As ejecta escapes from the growing crater, it forms an expanding curtain in the shape of an inverted cone ; the trajectory of individual particles within the curtain is thought to be largely ballistic.

Instead, non-return-to-zero, inverted encoding is used: a change from pit to land or land to pit indicates a one, while no change indicates a series of zeros.

It is instead often topped with an inverted frustum of a shallow cone or a cylindrical band of carvings.

The Gateway Arch in St. Louis, Missouri, United States is sometimes said to be an ( inverted ) catenary, but this is incorrect.

The analysis of the curve for an optimal arch is similar except that the forces of tension become forces of compression and everything is inverted.

An asynchronous ( ripple ) counter is a single JK-type flip-flop, with its J ( data ) input fed from its own inverted output.

* the criminal is introduced at the very start of the story and his crime and reasons are carefully explained, thus constituting an inverted detective story rather than a " puzzle ";

In an inverted detective story, the commission of the crime, and usually also the identity of the perpetrator, is shown or described at the beginning.

An inverted file or inverted index of a first file, by a field in this file ( the inversion field ), is a second file in which this field is the key.

However, this argument may be inverted by realists in arguing that since the sentence " Socrates is wise " can be rewritten as " Socrates has wisdom ", this proves the existence of a hidden referent for " wise ".

Whereas the thermodynamic terms " exothermic " and " endothermic " respectively refer to processes that give out heat energy and processes that absorb heat energy, in biology the sense is effectively inverted.

These types of breast surgery can also repair inverted nipples by releasing milk duct tissues that have become tethered.

It was also typically held in the aboriginal cultures of the Americas, and a flat Earth domed by the firmament in the shape of an inverted bowl is common in pre-scientific societies.

He also extended his study of optics to the human eye, and is generally considered by neuroscientists to be the first to recognize that images are projected inverted and reversed by the eye's lens onto the retina.

The verses are also sometimes inverted into chiasmus.

The tide rises round a car which is stuck on the causeway ; also featured are the characteristic sheds made from local fishing boats, inverted and cut in half.

The law also implies that mirror images are parity inverted, which we perceive as a left-right inversion.

Instead, part or all of the glans is usually kept and reshaped as a clitoris, while the skin of the penile shaft may also be inverted to form the vagina ( some more recently-developed procedures, such as that used by Dr. Suporn Watanyusakul use the scrotum to form the vaginal walls, and the skin of the penile shaft to form the labia majora ).

With high-side injection, the spectral components that were distributed around 45000 Hz will be distributed around 2000 Hz in the reverse order, also known as an inverted spectrum.

That is in fact desirable when the IF spectrum is also inverted, because the BFO inversion restores the proper relationships.

* 54px J ( also called " inverted L " or " Gamma "): a row of three blocks with one added below the right side.

* 56px S ( also called " inverted N ", " reverse squiggly ",): two stacked horizontal dominoes with the top one offset to the right.

" Wing " can also mean an inverted airfoil on a race car that generates a downward force to increase traction.

If a simple pendulum is suspended from the cusp of an inverted cycloid, such that the " string " is constrained between the adjacent arcs of the cycloid, and the pendulum's length is equal to that of half the arc length of the cycloid ( i. e. twice the diameter of the generating circle ), the bob of the pendulum also traces a cycloid path.

Amtrak's former logo, also known as the " inverted arrow " or the " pointless arrow " was used from 1971 until late 2000 when the " Wave " logo took over.

The Horseshoe Falls, which are approximately wide, have also changed their shape through the process of erosion ; evolving from a small arch, to a horseshoe bend, to the present day gigantic inverted V. Just upstream from the falls ' current location, Goat Island splits the course of the Niagara River, resulting in the separation of the Canadian Horseshoe Falls to the west from the American and Bridal Veil Falls to the east.

The direction of the slant depends on the direction the shutter curtains run in ( noting also that as in all cameras the image is inverted and reversed by the lens, i. e. " top-left " is at the bottom right of the sensor as seen by a photographer behind the camera ).

A chevron ( also spelled cheveron, especially in older documents ) is an inverted V-shaped pattern.

Using these inverted conditionals, subjective logic also provides a method for deduction.

An important variation on the whodunit is the inverted detective story ( also referred to as a " howcatchem " or " howdunnit ") win which the guilty party and the crime are openly revealed to the reader / audience and the story follows the investigator's efforts to find out the truth while the criminal attempts to prevent it.

Symmetric airfoils have lower critical angles ( but also work efficiently in inverted flight ).

Cavendish also made " fixed air " ( carbon dioxide ) by dissolving alkalis in acids, and he collected these and other gases in bottles inverted over water or mercury.