Retrotransposons copy themselves in two stages: first from DNA to RNA by transcription, then from RNA back to DNA by reverse transcription. The DNA copy is then inserted into the genome in a new position. Retrotransposons behave very similarly to retroviruses, such as HIV.
Viral genomes, which are usually RNA, take over the cell machinery and make both new viral RNA and the protein coat of the virus.
Phage genomes are quite varied. The genetic material can be ssRNA (single-stranded RNA), dsRNA (double-stranded RNA), ssDNA (single-stranded DNA), or dsDNA (double-stranded DNA). It may be between 5 and 500 kilo base pairs long with either circular or linear arrangement. Bacteriophages are usually between 20 and 200 nanometers in size.
Phage genomes may code for as few as four genes, and as many as hundreds of genes.
Some scientists and doctors have used messenger RNA in vaccines to treat cancer and prevent people from becoming sick.
Figure skating
Figure skating is both an art and a sport, in which people skate around on ice, doing jumps and spins. It is done at the Winter Olympics, and it has its own world championships. The name means to make figures or patterns on the ice. People skate with music.
In figure skating, sometimes women or men skate alone, or they skate in couples. Couples dancing includes "pairs" and ice dancing. Pairs skating has jumps, and sometimes the man lifts the woman in the air. These things are not done in ice dancing. In ice dancing, the woman must be held in the man's arms. Another kind of figure skating is synchronized skating done in groups.
The first ever figure skating club was started in 1742 in Edinburgh, Scotland. World Championships began in 1896 (the first in St. Petersburg, Russia). Before the Winter Olympic Games were started, competitions in figure skating were part of the Summer Olympic Games, in 1908 and 1920.
The International Skating Union (ISU) made the rules.
Singles skating is composed of a Short Program and a Free Skate. Both of them have a technical score and a presentation score.
Under the ISU Judging System the Judges focus entirely on evaluating the quality of each element performed (technical aspect) and the quality of the performance. There will be a panel of 9 Judges per segment. Out of these 9 scores, the highest and lowest score of each element or program component are ignored and the average will be taken.
The score for the element is composed of a “Base Value” of each element and the “Grade of Execution - GOE”. GOE is that the Judge grades the quality of the element on a scale of +5 to -5. The total of all the elements scores gives the Technical Score.
The Judges award points on a scale from 0.25 to 10.00 with increments of 0.25 for the Presentation Score to grade the overall presentation of the performance. There are five items in the Presentation Score.
Skating Skills
Transitions, Linking Footwork and Movement
Performance/Execution
Choreography/Composition
Interpretation
There are six types of jump that ISU decides to score. The following items are listed in order of the score (difficulty). There are two types of jumps: edge jump and toe jump. The Axel, loop, and Salchow are edge jumps and the lutz, flip and toe loop are toe jumps.
Spins are classified as Sit spins, Upright spins or Camel spin. Each of them has various variations. Any position which is not basic is a non-basic position.
Sit spin
The position of this spin is that the upper part of the skating leg is at least parallel to the ice.
Upright spin
The position of this spin is any position with the skating leg is extended or slightly bent which is not a camel position.
Camel spin
The position of this spin is any position where the free leg backwards and the knee is higher than the hip level, however Layback, Biellmann and similar variations are still considered upright spins.
Pairs:
Ice dance:
Gabriel
Gabriel in the Bible is an angel, specifically an archangel (arch means "highest" or "chief"). The name means "God is my strength" or "man of God",
The greeting of the Angel Gabriel opens the prayer Ave Maria.
In the Christian calendar, the Archangel Gabriel is celebrated together with the Archangels Michael and Raphael on September 29th.
Gabriel is also a given name. Cognates: Hungarian: Gábor. Italian: Gabriele. Finnish: Kaapo. The feminine form of the name Gabriel is Gabrielle.
Gabriel is first mentioned in the Bible, in the book of Daniel, when he appeared to Daniel. In the New Testament, St. Gabriel appears first in the book of Daniel in the Old Testament, the angel announced to Daniel the prophecy of the seventy weeks. And most famously, to Mary to announce the coming birth of Jesus. The Catholic feast of the Annunciation celebrates this visit every year, nine months before Christmas.
The Bible does not say angels have wings, but Christian artists usually show them that way.
Post office
A post office is a place that is made available by the postal system to post, receive, sort, handle, and to move or deliver mail. postage stamps can be bought to mail things like packages or letters and drop them off there, and the employees deliver it to the destination.
Lahn
The Lahn is a river in Hesse, Germany with a length of .
Its source is in the Rothaargebirge.
It flows through the towns Marburg, Gießen, Wetzlar, and Limburg an der Lahn.
It joins the River Rhine at Lahnstein, near Koblenz.
Rottweiler
The Rottweiler ( or , ) is a breed of domestic dog, regarded as medium-to-large or large. Their coat of fur is mostly black, with brown on the legs and face. They are excellent guard dogs, as well as herding, and companion dogs.
The Rottweiler is one of the oldest of herding breeds. With a history possibly dating back to the Roman Empire, the Rottweiler may be a descendant of ancient Roman drover dogs; a mastiff-type dog that was a dependable, rugged dog with great intelligence and guarding instincts.
Dogs are pack animals. When they feel threatened, they will defend themselves. They will also protect other members of the pack to a certain extent. How they defend themselves, and how close they feel to the rest of the pack (their owners) depends on the dog's nature. It also depends on how they were raised. Since dogs judge dangerous situations differently, they should not be left unattended near a place where people are arguing. They may also judge "unattended" moves of a child as an attack. Therefore, dogs should not be left alone near children.
There is no specific weight for a Rottweiler to qualify to be judged in dog shows. The dog must be neither too thin or too fat for its size. Both males and females must be "medium-large" in size for the American Kennel Club. The General German Rottweiler Club (ADRK) lists 50 kilograms (110 pounds) for males and 42 kilograms (93 pounds) for females .
When the Rottweilers' owners are not experienced, problems arise. Sometimes humans, mostly children, are attacked by these dogs. The attacks are often a result of irresponsible owners. Rottweilers are very intelligent and need equally smart handlers to raise them.
In some areas, breeding certain dogs has been restricted or forbidden.
Anne Murray
Morna Anne Murrary (born June 20, 1945) is a Canadian Pop and Country musician. She was born in Nova Scotia. She was a teacher in physical education. “I wasn’t all that young,” as she told later. “I did go to university and I did teach school for a year. I had my feet planted fairly firmly on the ground when it all began.” But also sang and made records. One of her records, "Snowbird", became a hit late in 1970. The song was not about Christmas, but was popular during the Christmas season. The record became a perennial through association with the holiday.
Murray later had hits with remakes of Beatles ("I'm Happy Just to Dance With You") and Monkees songs ("Daydream Believer"). She also recorded "Shadows in the Moonlight" and "A Little Good News", which became popular.