本试验旨在探讨狼山鸡出壳后生长发育的规律，以及生长相关基因的表达与其生长性能的关系。

The attempt has been made to better understand the profile of growth and development and the relationship between gene expression of growth related genes and growth performance in Langshan chicken.

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因此，一些干细胞可能带有与癌症或者组织的异常生长相关的突变基因的双份拷贝。

Also, such stem cells may have duplicate copies of some mutant genes that have been linked to cancer and abnormal tissue growth.

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目的：探讨硫酸软骨素酶ABC对严重的大鼠脊髓损伤蛋白多糖及生长相关蛋白43（GAP-43）基因表达的影响。

Objective:To investigate the effects of chondroitinase ABC on chondroitin sulfate proteoglycans(CSPGs) and growth associated protein-43(GAP-43)after spinal cord injury in rats.

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