In humans, the correlation between recombination frequency and length of dna sequence is, on average, 1 million bp per 1% re during the process of mapping the huntington disease gene (hd), it was found that hd was linked to a dna marker called g8with an rf of 596. surprisingly, when the hd gene was finally identified, its physical distance from g8was found to be about 500,000 bp, instead of the expected 5 million bp. how can this observation be explained?