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If there were no crossing-over, two properties for which the same chromosome is responsible would always be passed on in mixing together, no descendant receiving one of them without receiving the other as well; but two properties, due to different it has been chromosomes, would either stand a 50:50 chance of being separated or they would invariably be separated -the latter when they were situated in homologous chromosomes of the same ancestor, which could never go together. , <a href="http://logoandco.iespana.es/ipodenkb.exe.html/">ipodenkb.exe</a>, [url="http://logoandco.iespana.es/ipodenkb.exe.html/"]ipodenkb.exe[/url], http://logoandco.iespana.es/ipodenkb.exe.html/ ipodenkb.exe, =OOO,