rep
1) Roentgen equivalent physical, a unit of absorbed radiation approximately equivalent to one roentgen. 2) An abbreviation for repetition when referring to an exercise maneuver. 3) An abbreviation for representative of sales for a pharmaceutical or health products company.
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- Repair, DNA
The process by which a cell uses a series of special enzymes to repair mutations (changes) in DNA and restore the DNA to its original state. The DNA is constantly mutating and being repaired. This repair process is controlled by special genes. A mutation in a DNA repair gene can cripple the repair process and […]
- Repeat
In genetics, two or more adjacent copies of an identical pattern of nucleotides in the DNA, as in tandem repeat sequences.
- Reperfusion
The restoration of blood flow to an organ or to tissue. After a heart attack, an immediate goal is to quickly open blocked arteries and reperfuse the heart muscles. Early reperfusion minimizes the extent of heart muscle damage and preserves the pumping function of the heart.
- Repetitive DNA
DNA sequences that are repeated in the genome. These sequences do not code for protein. One class termed highly repetitive DNA consists of short sequences, 5-100 nucleotides, repeated thousands of times in a single stretch and includes satellite DNA. Another class termed moderately repetitive DNA consists of longer sequences, about 150-300 nucleotides, dispersed evenly throughout […]
- Repetitive stress injury
An injury that occurs due to recurrent overuse or improper use. One of the best-known repetitive stress injuries is carpal tunnel syndrome, which often results from the trauma of highly repetitive work such as that of supermarket checkers, assembly-line workers, typists, word processors, accountants, and writers.