Chromosomes Follow Tricky Path to Make Effective Sperm
(LiveScience.com)
LiveScience.com - They say opposites attract, and somehow even the wildly different X and Y chromosomes are able to pair up during sperm formation. New research shows how complex that process is, and it pinpoints a step in the process that can go awry, leading to sex-chromosome diseases or infertility.
http://us.rd.yahoo.com/dailynews/rss/health/*http://news.yahoo.com/s/livescience/20110223/sc_livescience/chromosomesfollowtrickypathtomakeeffectivesperm