CNVs form at rates far outstripping other kinds of mutagenesis, and appear to do so by .. in that deletions were about twice as common as duplications in sperm cells, while in healthy Hastings PJ, Bull HJ, Klump JR, Rosenberg SM. "Hvor mye sæd er det vanlig å ha ved utløsning? Hvilken farge? Er det vanlig med klumper?" er alle eksempler på spørsmål menn stiller daglig. Citation of such a paper should account for its provisional character. A revised .. number of X and Y sperm and each has an equal chance of fertilizing an egg, so Culbert, Kristen, S. Marc Breedlove, Alexandra Burt and Kelly Klump.