In a data set to determine crossover frequency between the sc,ec,and cv genes in Drosophila,the crossover frequency between ec and sc = 0.15,and ec and cv = .25.The number of double crossover flies was 15 out of 500 flies.Assuming sc,ec,cv is the respective order of the genes,what can we conclude from this result?
A) The coefficient of coincidence is near zero. B) The expected number of crossovers and the observed numbers are different. C) The genes are tightly linked. D) The coefficient of coincidence is near one. E) There is a large amount of interference between these genes.