Question: Recombination happens at what rate?
About the article "Evolution", section "Genetic hitchhiking".

Candidate passages:
Particular care has to be taken when interpreting threshold displacement energiesat temperatures where defects are mobile and can recombine.
At such temperatures,one should considertwo distinct processes: the creation of the defect by the high-energyion (stage A), and subsequent thermal recombination effects (stage B).
The initial stage A. of defect creation, until all excess kineticenergy has dissipated in the lattice and it is back to itsinitial temperature T0, takes < 5 ps.
This is the fundamental("primary damage") threshold displacement energy, and also the oneusually simulated by molecular dynamics computer simulations.
After this(stage B), however, close Frenkel pairs may be recombinedby thermal processes.
Since low-energy recoils just above thethreshold only produce close Frenkel pairs, recombinationis quite likely.
Hence on experimental time scales and temperatures above the first(stage I) recombination temperature, what one sees is the combinedeffect of stage A and B.
Hence the net effect often is that thethreshold energy appears to increase with increasing temperature,since the Frenkel pairs produced by the lowest-energy recoilsabove threshold all recombine, and only defects produced by higher-energyrecoils remain.
Since thermal recombination is time-dependent, any stage B kind of recombination also implies that theresults may have a dependence on the ion irradiation flux.
In a wide range of materials, defect recombination occurs already belowroom temperature.
E.g.
in metals the initial ("stage I") close Frenkelpair recombination and interstitial migration starts to happen alreadyaround 10-20 K. Similarly, in Si major recombination of damage happens alreadyaround 100 K during ion irradiation and 4 K during electron irradiationEven the stage A threshold displacement energy can be expectedto have a temperature dependence, due to effects such as thermalexpansion, temperature dependence of the elastic constants and increasedprobability of recombination before the lattice has cooled down back to theambient temperature T0.
These effects, are, however, likely to be much weaker than the stage B thermal recombination effects. 
Random chimeragenesis on transient templates (RACHITT) is a method to perform molecular mutagenesis at a high recombination rate.
DNA shuffling is a similar but less powerful method used in directed evolution experiments. 
Effective annual rate of interest is the percentage increase in an amount of money after a year of accumulating interest.
This does not depend on what happens during the year.
It can be calculated by formula_3 Where formula_4 represents the amount of money at time formula_5. 
Toxicokinetics (often abbreviated as 'TK') is the description of what rate a chemical will enter the body and what happens to it once it is in the body.  
In genetics, the coefficient of coincidence (c.o.c.)
is a measure of interference in the formation of chromosomal crossovers during meiosis.
It is generally the case that, if there is a crossover at one spot on a chromosome, this decreases the likelihood of a crossover in a nearby spot.
This is called interference.
The coefficient of coincidence is typically calculated from recombination rates between three genes.
If there are three genes in the order A B C, then we can determine how closely linked they are by frequency of recombination.
Knowing the recombination rate between A and B and the recombination rate between B and C, we would naively expect the double recombination rate to be the product of these two rates.
The coefficient of coincidence is calculated by dividing the "actual" frequency of double recombinants by this expected frequency: c.o.c.
= actual double recombinant frequency / expected double recombinant frequency Interference is then defined as follows: interference = 1 - c.o.c.
This figure tells us how strongly a crossover in one of the DNA regions (AB or BC) interferes with the formation of a crossover in the other region.