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Primer (molecular biology) The DNA replication fork. RNA primer labeled at top. A primer is a short, single-stranded nucleic acid used by all living organisms in the initiation of DNA synthesis. A synthetic primer may also be referred to as an oligo, short for oligonucleotide. DNA polymerase (responsible for DNA replication) enzymes are only ...
Primer (textbook) A primer (in this sense usually pronounced / ˈprɪmər /, [1] sometimes / ˈpraɪmər /, usually the latter in modern British English [2]) is a first textbook for teaching of reading, such as an alphabet book or basal reader. The word also is used more broadly to refer to any book that presents the most basic elements of any ...
Primer (paint) A water-based primer, used primarily on wood. A primer ( / ˈpraɪmər /) or undercoat is a preparatory coating put on materials before painting. Priming ensures better adhesion of paint to the surface, increases paint durability, and provides additional protection for the material being painted. [1]
A cosmetic primer is a cream applied before another cosmetic to improve coverage and lengthen the amount of time the cosmetic lasts on the face. Variations. There are different kinds of cosmetic primers such as foundation primer, eyelid primer, under-eye primer, lip primer, mascara primer, and mattifying primers.
Centerfire ammunition. A center-fire (or centerfire) is a type of metallic cartridge used in firearms, where the primer is located at the center of the base of its casing (i.e. "case head"). Unlike rimfire cartridges, the centerfire primer is typically a separate component seated into a recessed cavity (known as the primer pocket) in the case ...
A primer dimer ( PD) is a potential by-product in the polymerase chain reaction (PCR), a common biotechnological method. As its name implies, a PD consists of two primer molecules that have attached ( hybridized) to each other because of strings of complementary bases in the primers. As a result, the DNA polymerase amplifies the PD, leading to ...
The New England Primer was the first reading primer designed for the American colonies. It became the most successful educational textbook published in 17th-century colonial United States and it became the foundation of most schooling before the 1790s . In the 17th century, the schoolbooks in use had been Bibles brought over from England.
Primer binding site. A diagram showing where RNA primers bind to begin replication. [1] A primer binding site is a region of a nucleotide sequence where an RNA or DNA single-stranded primer binds to start replication. The primer binding site is on one of the two complementary strands of a double-stranded nucleotide polymer, in the strand which ...