杂合性丢失是基因一个拷贝的正常功能丢失，同时另一个拷贝已经失活。
LOH is usually defined as the loss of normalfunction of one copy of a gene in which the other copy was already inactivated.
杂合性丢失是基因一个拷贝的正常功能丢失，同时另一个拷贝已经失活。
LOH is usually defined as the loss of normalfunction of one copy of a gene in which the other copy was already inactivated.
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