Damage may be a result of the direct effects of alcohol on the brain or may result indirectly, from a poor general health status or from severe liver disease. For example, thiamine deficiency is a common occurrence in people with alcoholism and results from poor overall nutrition.
In the case of a longitudinal wave, a wavelength measurement is made by measuring the distance from a compression to the next compression or from a rarefaction to the next rarefaction. On the diagram above, the distance from point A to point C or from point B to point D would be representative of the wavelength.
One linkage map unit (LMU) is 1% recombination. Thus, the linkage map distance between two genes is the percentage recombination between those genes. In this case, we have a total of 300 recombinant offspring, out of 2000 total offspring.Map distance is calculated as (# Recombinants)/(Total offspring) X 100.alculating the map distance, we have a total of 350 recombinants out of 1600 offspring. So the percentage recombination is (350/1600)x100 = 21.875%, so the distance bewteen these two genes is calculated as 21.875 LMU--significantly less than the 23.125 LMU calculated from our three point cross.