MourningBands added 2 new photos. Honoring Those that Answered the Call. When people answer the call of public service with their lives, as far as I'm concerned, that's the gold standard. That was my thought when I brought these pieces together, and my thought each and every time one of them falls in the line of duty.
Best Answer: A mutation is a change in DNA. Genetic recombination can apply to two things: crossing-over between homologous chromosomes or recombining of traits when gametes fuse during fertilization. They all contribute to evolution because they result in a new organism with a new combination of characteristics. This new combination of characteristics is subjected to natural selection.
Recombination can occur between any two genes on a chromosome, the amount of crossing over is a function of how close the genes are to each other on the chromosome. If two genes are far apart, for example at opposite ends of the chromosome, crossover and non-crossover events will occur in equal frequency.or this experiment, a total of 2335 gametes were analyzed, and 303 (151 pr+ vg+ + 154 pr vg) of these were the result of recombination. The estimate of the linkage distance between pr and vg from these experiments is 13.0 cM [(303/2335)*100].