科学家们从死鼠的器官中提取细胞核，移入到另一只活鼠的卵细胞中，最终克隆出了小鼠。

The scientists extracted a cell nucleus from an organ of a dead mouse and planted it into the egg of another mouse which was alive, leading to the birth of the cloned mouse.

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他们发现这种敲除基因的小鼠骨髓中的淋巴细胞较正常鼠少50%，产生特异免疫细胞的胸腺较正常鼠少80%。

They found that the knockout mice had 50 percent fewer lymphocytes in their bone marrow and 80 percent fewer in their thymus, a collection of glands that helps produce specialized immune cells.

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目的观察过继转输正常妊娠孕鼠的T、B细胞对小鼠自然流产孕鼠妊娠预后的影响。

ObjectiveTo investigate the effect of the adoptive transfer of T cells and B cells from the normal pregnancy mice on pregnant outcome of the abortion-prone mice.

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